Offers to Sell

GRANDDTS PDC Drilling Bit Features  Deep blade and long paraboli , c configuration design,ensures optimal botto m hole flow pattern and anti-balling. Optimize the cutting structure and places  , high quality cutters at diff erent points, ,  increases wear resistance and offensive of

Minimum Order: 10 long tons

Hardfacing Tungsten carbide particle hardfacing is applied liberally along the shirttail and extended up the leading edge of the bit leg for additional protection in high-speed, directional or abrasive applications   Shirttail Compacts Tungsten carbide compacts in the shirttail protect the leg and body in abrasive formations and deviated or horizontal wells.   Gauge Inserts More tungsten carbide inserts are placed in the gauge to reduce the wear in the abrasive formation. It can protect gauge and increases the stability and life of the bit.   Teeth The teeth are composed of premium tungsten carbide and some other elements, our engineer fine-tuned the compacts to match specific formations and drilling applications.   Nozzle Optimized flushing system including three combined nozzles, balances fluid flow, allows effectively cleaning bottom-hole zone and anti-balling. GRANDDTS TCI Bit Technical Data Bit Size IADC Code API   Connection RECOMMENDED   PARAMETERS in mm Rotary   Speed(rpm) Weight On   Bit(KN) 8-1/2” 215.9 437 4-1/2"API REG 240〜70 0.35〜0.9 9-1/2” 241.3 437 6-5/8"API REG 240〜70 0.35-0.9 12-1/4” 311.1 437 6-5/8"API REG 240-70 0.35-0.9 If you have any question on PDC Bit,Oil Well Drill Bit,Tricone Bit. We will give the professional answers to your questions.

Minimum Order: 10 long tons

Core Barrel Bit Description Internal structure: 1. Adopting the steel ball locking sliding bearing and the bearing surface is welded with wear-resistant alloy, which has high wear-resistant performance and longer service life. 2. High performance rubber sealing structure and metal sealing structure improve the life and reliability of the whole sealing structure. 3. High performance environmental protection grease and bearing structure equipped with oil storage and pressure compensation system improve the working life of the bearing. 4. Carbide inserts with high strength and toughness can improve the impact resistance of inserts and reduce the insert broken rate. 5. Optimized cutting structure, insert exposed height, quantity and shape strengthens the drilling coverage, giving full play to the advantages of trench-less reamer. Note Rotary drilling bits/ co , re barrels/ rotary palm,Tri- cone drilling

Minimum Order: 10 long tons

Tricone Rock Bits Oilfield Drill Bit With high precision bearings with neck to slide, two way thrust bearing; Tooth palm bearing surfact surfacing hard alloy and cone bearing with reduced after welding together gold sliver, improve the bearing capacity and resistence to bite ability. GRANDDTS Tricone Rock Bits Description 1) High-strength, high flexibility, high temperature, high wear resistance. 2) High-precision metal seal. 3) locking roller ball, to adapt to high-speed. 4) The use of high strength hig toughness carbide teeth. 5) Hours in the rotary cone bit with the impact, crushing and shearing the role of broken rock. 6) cone bit to adapt to the soft, medium and hard of various strata. 7) Reasonable price and long working life. Tianjin Grand Construction Machine , ry Technology Co., Ltd., deeply engaged in rock breaking tools more than 20 years. If you have any question on PDC Drill Bits,Oil Well Drill Bit,Tricone Bit. We will give the professional answers to your questions.

Minimum Order: 10 long tons

Steel Tooth Tricone Bit Wholesale Tricone Bit These Grand tungsten carbide insert bits are used to drill soft formation with low compressive strength and high drill ability, such as shale, clay, sandstone and soft limestone, etc. tricone, Core Barrel, Roller Bit, drilling bit, rotary drilling bit, tricone drill bit, tci bit GRANDDTS Tricone Drilling Bit Description 1. Grand Tungsten carbide insert tooth sealed and gage protection journal bearing, hard faced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver plated. The load capacity and seizure resistance of the bearing is greatly improved 2. O- ring seal is made of the more wear resistance high saturated Buna-N with the section and precisely designed sealing flange in the cone sealing area increased the reliability of the seal. 3. The bit bearing is ball which can be applied to high rotary speed drilling. 4. All rubber compensator is used which can provides the bearing system with good assurance of lubrication 5. Grand new type of grease that can sustain high temperature up to 250C is utilized. 6. Grand high wear resistance and excellent cutting ability of the insert bit are given full play by using carbide compacts of high strength and high toughness in combination with optimized compact numbers and rows, the exposure height and special shaped compacts. 7. Meet strictly of API standard 8. Grand is professional manufacturer of TCI tri-cone bits, steel tooth tri- cone bits and PDC bits 9. High quality, reasonable price and best service. 10. Delivery in time 11. Good feedback of the clients 12. Grand drilling bits can be used for all kinds of water well, oil field, underground, construction, geothermal well,etc Note Core Barrel, Roller Bit, drilling bit, rotary drilling bit, tricone drill bit, tci bit, PDC bit, hybird PDC bit, drilling bit, rotary drilling bit, tri-cone drilling bit, HDD bit, HDD reamer

Minimum Order: 10 long tons

Horizontal Drill Bit Oil Drilling Bit Description Designed & developed according to the construction requirements and market demand, trench-less cone palm can be applied to various formations and drilling tools, achieving a full coverage of 8-1/2 to 12-1/4 inch. Internal structure of GRANDDTS Horizontal Drill Bit: 1. Adopting the steel ball locking sliding bearing and the bearing surface is welded with wear-resistant alloy, which has high wear-resistant performance and longer service life. 2. High performance rubber sealing structure and metal sealing structure improve the life and reliability of the whole sealing structure. 3. High performance environmental protection grease and bearing structure equipped with oil storage and pressure compensation system improve the working life of the bearing. 4. Carbide inserts with high strength and toughness can improve the impact resistance of inserts and reduce the insert broken rate. 5. Optimized cutting structure, insert exposed height, quantity and shape strengthens the drilling coverage, giving full play to the advantages of trench-less reamer. At the same time, the product combines the working condition of horizontal drilling with the trench-less cone and design a special palm back stabbing structure. Grand can develop special models of products according to customers' needs. Please download our samples for details. Selection Table Trench-less cone seal type Type medium to soft formation medium to hard formation Inch mm 517 527 537 547 617 627 637 647 Rubber seals 8 1/2 216 V V 9 7/8 251 V V 12 1/4 311 V V Metal seal 8 1/2 216 V V 12 1/4 311 V V Note The “V” in the table represents the existing IADC, and the IADC without “V” in the table can be designed. We have a wide range of horizontal directional drilling (HDD) equipment designed and matched for any type of drilling conditions. The versatility of this product is matched to the drilling requirements to optimize customer productivity. Tianjin Grand Construct , ion Machinery Technology Co., Ltd., deeply engaged in rock breaking tools more than 20 years. For more details on oil well bits, please click here.

Minimum Order: 10 long tons

Feature: 1. Hook and loop closure 2. Black binding edge 3. Provides 360 degree reflective strips 4. Easy to put on and take off 5. Breathable and comfortable 6. Machine washable Belong to traffic safety clothing of PPE. Reflective vest, hi-visible vest, hi-vis vest, safety vest Specification: 1. Material: Polyester 2. Size: One size 3. Color: variety of colors 4. Reflective material: 2 horizontal stripes / 5cmH / gray *Actual product may vary due to product enhancement Application: Ideal for all purpose, which need to strengthen protection and warning for a person wearing it

Colored Violins for Sale Maple body, ebony accessories, advanced assembly. The lack of corner modeling design, in symmetry and change; patent coloring technology gives this series of colorful violin different visual appearance, pure monochrome, rich patterns, all kinds of color changes are fully reflected in the product, to meet different aesthetic needs. The VPU-300 pickup has a clear pickup effect and strong voice expression. Features of DSG Series Intermediate Electric Violin PROFESSIONAL ASSEMBLY The size of Kinglos violin bridge, strictly in accordance with international standards and professional standards, fully ensures the vibration and sound transmission of the violin body. From the string height of 1 to 4 strings, according to the standard of 3.5mm to 5.5mm, it fully takes care of the comfort and professional requirements of the player. The neck conforms to the structure of ""tiger's mouth"" of the human body, which is comfortable, smooth and feels great." ARTISTIC BODY The German shadow JW-1 type pickup is used to pick up the vibration frequency and signal of the original sound, which has the charm of the original and professional violin, with bright and thick treble…

Beginner Violin for Sale Violin For Beginner Face material: Solid Spruce Back / Side: Maple Fingerboard material: India Ebony Accessories: Ebony Paint: Arts paint Bridge: Importer Maple String: Middle steel string Specifications of Beginner Electric Violin Acoustic Violin Size 4/4, 3/4, 1/2, 1/4, 1/8 Materials Solid Spruce Body, Ebony Fingerboard, Ujube Accessories. Set-up based on standard of advanced violin Outfit includes case, bow, rosin, Colour Bright / matte. Features of Beginner Violin Beautiful Violin PROFESSIONAL ASSEMBLY The size of the bridge, strictly in accordance with international standards and professional standards, fully ensures the vibration and sound transmission of the violin body. From the string height of 1 to 4strings, according to the standard of 3.5mm to 5.5mm, it fully takes care of the comfort and professional requirements of the player. The neck conforms to the structure of "tiger's mouth" of the human body, which is comfortable, smooth and feels great. BRIGHTENED DOT Maple texture - tiger skin clear, arts paint, high-level assembly, exquisite workmanship, this violin is the largest demand in the intermediate level violin.

Cool Looking Guitars Kinglos Visual Arts Guitar, along with basic performance feature, is painted the most aesthetic and individualized design with new high-tech. The colors are painted on wood directly without any medium. The grain remains naturally clear and visible. The resonance and tone of electric guitar are kept intact. Specifications of Cool Looking Guitar Size 41'' Material Neck&Top&Back & Side: Linden, Fingerboard: Rosewood. Set-up Steel Strings, enclosed with nickel-plated buttons. Color A variety of patterns; It can be customized. Features of Cool Guitar PROFESSIONAL ASSEMBLY While providing enough support for thin and thin panels, they can reduce the weight of the whole panel and make the panel vibrate and give full play to the resonant sound. BRIGHTENED DOT Patent coloring technology gives the series of products different visual appearance, pure monochrome, rich patterns, all kinds of color changes are fully reflected in the product, to meet different aesthetic needs. Patent Printing Technology Ensure Sound Quality . Now the price of cool guitars for sale is affordable, if you have needs, please contact us.

Guitar Cases And Bags Size : 41", made of 600d water-resistant oxford fabric with 10mm padded sponge protecting your guitar from unexpected collision. The convenient carry handle on the back and side easy carrying while keeping the bag vertical. As an innovative guitar case maker, Kinglos provides various personalized guitar case for your selection. Custom guitar case is fully supported, welcome to consult. Specifications of Guitar Case Material 600D Oxford cloth Size 41 inches Make guitar cases include many Variety When the guitar is not in use, the guitar is usually put into a guitar bag, which protects the guitar. Using the printing method and the sewing method, a corresponding product logo and decorative pattern cannot be replaced at will. If the sewn label is removed by stitching, even if a new one is re-sewn in the same position Labels generally affect the appearance and performance of the guitar bag. Therefore, for traditional guitar bags, product logos, decorative patterns, etc. cannot be changed according to the needs of users. For art lovers, this will limit their creativity and reduce the fun of using guitar bags. Make guitar bags with a variety of shapes, this kind of guitar bags have a cover, you can change the cover of the guitar bags according to the needs of the user, giving people a completely new feeling. The technical scheme adopted by the utility model is as follows: Guitar cases/bags with a variety of shapes includes body and a cover of guitar cases/bags. The guitar bag body includes a bag base and a cover. One side of the cover is connected to the bag base, and the other of the cover There is a guitar taking opening between one side and the bag seat; the bag seat is provided with a first half guitar accommodating cavity, the cover is provided with a second half guitar accommodating cavity, the first half guitar accommodating cavity and the second half guitar The accommodating cavity constitutes a guitar accommodating cavity; the cover is detachably arranged on the front surface of the cover, the periphery of the cover is provided with a hanging part, and the cover is provided with a step matching the hanging part along its outer contour line, The step is located on the upper side of the guitar taking opening.

DSZB Series Electric Violins For Intermediate Players Maple body, ebony accessories, advanced assembly. The lack of corner modeling design, in symmetry and change; patent coloring technology gives this series of electric violins different visual appearance, pure monochrome, rich patterns, all kinds of color changes are fully reflected in the product, to meet different aesthetic needs. The VPU-300 pickup has a clear pickup effect and strong voice expression. Specifications Of DSZB Series Electric Violin for Intermediate Players Size 4/4 Materials Solid Spruce Body ,Ebony Fittings Pick-up system DV-9 type pickup Set-up based on standard of advanced violin Outfit includes case, bow, rosin, 4m cable, earphone Color Patent coloring technology gives the series of electric violins different visual appearance, pure monochrome, rich patterns, all kinds of color changes are fully reflected in the product, to meet different aesthetic needs. Features of DSZB Series Electric Violin for Intermediate Players PROFESSIONAL ASSEMBLY The size of Kinglos acoustic violin bridge, strictly in accordance with international standards and professional standards, fully ensures the vibration and sound transmission of the violin body. From the string height of 1 to 4 strings, according to the standard of 3.5mm to 5.5mm, it fully takes care of the comfort and professional requirements of the player. The neck conforms to the structure of ""tiger's mouth"" of the human body, which is comfortable, smooth and feels great." POWERFUL PICKUP DV-9 type pickup, active output vibration audio, bright sound. As one of resonator guitar makers, we have types of related products for sale, if you have needs, please contact us.

Specifications Of MIDS Series S Shaped Violin Size 4/4 Materials Solid Spruce Body ,Ebony Fittings Pick-up system DV-100 type pickup. Set-up based on standard of advanced violin Outfit includes case, bow, rosin, 4m cable Color Black, white, amber, dark red, zebra wood. Features of MIDS Series Advanced Electric Violin PROFESSIONAL ASSEMBLY The size of Kinglos violin electric bridge, strictly in accordance with international standards and professional standards, fully ensures the vibration and sound transmission of the violin body. From the string height of 1 to 4 strings, according to the standard of 3.5mm to 5.5mm, it fully takes care of the comfort and professional requirements of the player. The neck conforms to the structure of ""tiger's mouth"" of the human body, which is comfortable, smooth and feels great." ARTISTIC BODY The Ad-88 type pickup is used to pick up the vibration frequency and signal of the original sound, which has the charm of the original violin, with bright and thick treble… Passive output vibration audio, sound bright.

Double Bass Bow Kinglos Double Bass Bow Kinglos electric double bass bows are synthetically manufactured. Its composition provides an ideal combination of strength and stability, and the appropriate flexibility enable you to play like a professional player. Kinglos double bass bow can withstand changes in humidity and temperature, making it more durable. It is octagonal and has an impeccable balance. Carbon fiber responds well to vibrations, and you can feel the music with your fingers, thereby improving your performance. The shape of our double electric upright bass bow is great, suitable for faster playing, very light weight, suitable for flexible play, all natural Mongolian horse hair is laid by hand. In fact, all components are installed manually by well-trained professional craftsmen. Specifications of Double Bass Bow Size 3/4 Materials Solid Spruce Body ,Ebony Fittings. Pick-up German shadow KL-948 type pickup. Set-up based on standard of advanced Double Bass. Outfit includes bag, bow, rosin and supports for the abdominal area. Color Black, dark red, sunset, carbon fiber How to hold the bow of the double bass The bow holding of the double bass is roughly divided into two categories: "fist holding" and "finger pinching". Each category also contains two bow holding methods. Therefore, there are four kinds of bow holding methods. In the beginning, the double bass bow was held with the palm of the hand facing inwards. It was held in a holding fist style. This bowing method is mostly used in Germany and Austria and other countries. It is customarily collectively referred to as the German bow or the big bow {because the tail box is wide}. German bows are divided into Dragonety and Simandel. Hou Lei in France. People lowered the height of the ponytail box. The cello holding bow method was adopted. But the thumb was placed under the ponytail box. This method was called French bow or small bow. Italy changed the French bowing method to the thumb. Place it under the bow. It is exactly like a cello to hold the bow. This method is the Italian bow or the inner pinch bow. Also called the Portsini bow. 1. Dragoneti style: Place the first-third joint of the right thumb on the bow bar. The palm of the index finger, middle finger, and ring finger is loosely attached to the ponytail box. The little finger is placed on the section with nails. On the plane where the metal hoop of the horsetail box faces downwards, the screw handle of the bow rod is placed exactly at the joint of the index finger, close to the joint. Use your thumb and middle finger to control the bow. Use your little finger to support the bow and stabilize the direction. Use your thumb and little finger to hold the bow like pliers. The right hand forms a hollow arch. It encloses the arch seat. It adjusts and bears the weight from the arm and shoulder like a spring. Just like when a person is standing, the arm is naturally drooping. The relaxed state of the hand is naturally curved and solitary. This state is the shape of the hand holding the bow. The predecessor double bass master Dragoneti and the outstanding double bass educator. Player Fenderson used this bowing method. 2. Simander type: It has a ponytail box with a large space between the bow hair and the bow rod. Enclose the ponytail box with the palm of your hand. Make the ponytail box firmly attached to the palm of your hand. The screw handle of the bow rod is placed in the recess under the thumb.. This is the most obvious difference between Simandelian and Dragoneti. This bowing hand shape is the same as the hand shape when holding a pencil. Professor of the Vienna Conservatory of Music. The famous player Simandel, President of the International Double Bass Association Walter, and the best double bass soloist Karl of this century all use this bowing method. The German bow holding method maintains the natural posture of the human body. The bow rod and the straight arm form a double right angle. The bow is carried out in a normal and natural state. The force used comes from the shoulder muscles and the spine of the back. The rotation of the arm during the bow makes the bow hair effective." "Deep" into the strings. The sound is strong and powerful. At the same time, it also eliminates the factors of easy fatigue. PROFESSIONAL ASSEMBLY Well suited to almost silent practice or for playing on stage; Body made of Paulownia; Fingerboard made of birch (Betula albosinensis); Maple neck; Body support; Traditional headstock with spiral; Scale: 105 cm; Height-adjustable bridge;