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10mm 12mm Solid Carbide Drill Bits For Hardened Steel Stainless Steel

Product Details:
Place of Origin: MADE IN CHINA
Brand Name: KTC
Certification: CCC
Model Number: DB-3D/5D
Payment & Shipping Terms:
Minimum Order Quantity: 1PC
Price: Negotiation
Packaging Details: 1PC/ PVC Packing, 10pcs PVC Packing/Pack...
Delivery Time: 1-35days
Payment Terms: T/T, L/C,Paypal...
Supply Ability: 10000pcs/week

Detail Information

Product Name: End Mills Raw Material: GU20UF/TF200
Coating: Balzers/TiSiN Color: Black/Copper
Hardness: >91.5HRA Cutting Diameter: Based On The Flute Length
High Light:

solid tungsten carbide drill bits


tungsten steel drill bits

Product Description

10mm 12mm Solid Carbide Drill Bits For Hardened Steel Stainless Steel


tungsten carbide drill bits





Extremely versatile and precise drilling – even with changing drills in various materials. Tungsten carbide drill with extra sharp cutting edges, therefore also very well suited for metal. Patented 4-step profile = Fast drill dust feed when drilling into masonry and concrete.
The multi purpose drill bit is a universal special drill bit and especially for precision rotary drilling in solid brick, cavity brick, roof tiles, marble, tiles, wood, metal and plastics. This tungsten carbide drill can also be used for drilling in concrete, natural stone, roof tiles, granite and ceramic tiles.




DB-3D/5D Tungsten steel drill bit is made of imported fine particle tungsten steel material with bending strength of 4300mpa, grain size of 0.6 μm, and high-performance composite coating imported from Switzerland. The cutter adopts special angle design, strict quality control, self inspection rate of 100%, qualification rate of more than 98%, suitable for hole processing of various grades of steel, non-ferrous metals and other materials.


Raw Material GU20UF/TF200
WC 89%
Co 11%
TRS >4300N/mm2
Hardness >91.5HRA
A.O.L 66mm-153mm
Grain size 0.6 μm
Upto HRC55-60
Coating Balzers/TiSiN
Suitable for various grades of steel, non-ferrous metals and other materials



Item TiSiN
Hardness(HV) 3600
Thickness(UM) 3
Oxidation temp(°) 1000
Friction coeffient 0.45
Color Copper


Standard Sizes

Flute Length=3*D
Cutting Diameter Shank Diameter* Overall Length
D3-D6 D6*66L
D6.1-D8 D8*79L
D8.1-D10 D10*89L
D10.1-D12 D12*102L
D12.1-D14 D14*107L
D14.1-D16 D16*115L
D16.5-D18 D18*123L
D18.5-D20 D20*131L
Flute Length=5*D
Cutting Diameter Shank Diameter* Overall Length
D3-D3.7 D6*66L
D4-D4.65 D6*74L
D4.8-D6 D6*82L
D6.1-D8 D8*91L
D8.1-D10 D10*103L
D10.1-D12 D12*118L
D12.1-D14 D14*124L
D14.1-D16 D16*133L
D16.5-D18 D18*143L
D18.5-D20 D20*153L


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