large drill bit

PDC bits:
1)certified by ISO9001&API
2)optimized ROP and bit life,
3)longer drilling intervals without need for tripping.

300pcs drill and bit set.
Inner packing:
Plastic box
Outer packing:
Color carton dimensions: 82 x 33 x 24cm...

75pcs drill and bit set.
Inner packing:
Plastic box
Outer packing:
Color carton dimensions: 62.5 x 37.5 x 22cm...

Contents
1) 4pc: spanner insert bits: 4, 6, 8, 10
2) 12pc: tamper hex insert bits: 2, 2.5, 3, 4, 5, 6, 5/32, 9/64,
1/8, 7/64, 3/32, 5/64

Contents
1) 30pc: 50mm bit:
a) PH: 0, 1, 2, 3
b) SL: 3, 4, 5, 6, 7
c) POZI: 1, 2, 3 ...

1.PDC BIT certificate with API and ISO.
2.We can manufacture matrix body pdc bits and steel body pdc.
3.pdc bit from 2-7/8" to 17"

Size from 3 7/8" to 26"
Covers almost all IADC code.
Stocks adequate&timely delivery

Masonry Drill Bit
Professional rotary impact drills. Tungsten carbide tip with brass/zinc alloy braze.

PDC rock/matrix body/arc pillar bit
1>ISO9001
2>Good stability
3>Long work life
4>High efficiency

1. material: aluminium bronze, beryllium bronze
2. specification: L*W*H:400*290*70mm

Glass & Tile Drill Bit
Be suitable for drilling holes in glass, tiles, ceramics, mirror, hard plastic objects and so on.

Trademark: Solidkey
Packing: Plywood Box with Steel Pipe Enhanced
Standard: API
Origin: China

We are specializing in manufacturing and supplying top quality DTH (Down the hole) Bits((3", 4",5",6",8",10")in various size and type.
T

1.High performance PDC-Cutters
2.Carbide and Diamond gauge protection
3.Carbide/Diamond Shock Studs
4.Threaded or Plain Carbide Nozzles for Flushin

Specifications
API 7 7/8" TCI Drill Bit/Insert Tricone Rotary Bit/Hard Insert Rock Bit for Drilling
Ship by sea or air
Good quality and price

Tricone bits from 6 to 17 1/2 inch, both steel milled tooth and Tungsten Carbide Insert Bit with metal seal.

API TCI bit, higher ROP, longer use life.
high reliability and quality

material:abs/iron

1.Seal type:Metal/Rubber
2.Material:alloy/carbide
3.competition price

Taper cross bit and thread cross bit for mining, quarrying, tunneling and water well drilling.

Taper button bit and thread button bit for mining, quarrying, tunneling and water well drilling.

1.high quality and best service
2.pdc bit for water well drilling
3.superior in quality;reasonable price

1.high quality and best service
2.pdc bit for water well drilling
3.superior in quality;reasonable price

Household DIY Tools 25Pcs Screwdriver Bit Socket Set / Screwdriving Bit Sets
 
Description:</strong

HSS Step Drill Bit
For drilling holes in metal material, wood and hard plastic.

 
Polycrystalline Diamond Drilling Tools PCD ( TSP ) Core Bits For Granite</stron

a. Our products can match over 95% against the original products
b. Price are competitive against the famous brands and best quality against the smal

 
ST58 Tungsten Carbide Hardened Steel Drill Bits Dia 89mm - 115mm
 
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We supply many kinds of Rock Bits,PDC bit, tricone bit etc. with high quality and low price. rockbit#vip.163.com Skype: jane52992#hotmail.com

1Certified by ISO9001&API
2Used for water well, oil field
3IADC:114-117,127,437,517,617,637
4.type:rolling bearing journal
5.delivery on tim