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Tungsten Carbide Drill Bits For Concretes 3D Coating Black Or Copper Color

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Tungsten Carbide Drill Bits For Concretes 3D Coating Black Or Copper Color

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Model Number :	DB-3D/5D
Brand Name :	KTC
Certification :	CCC
Price :	Negotiation
Delivery Time :	1-35days
Payment Terms :	T/T, L/C,Paypal...
Supply Ability :	10000pcs/week

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Tungsten Carbide Drill Bits For Concretes 3D Coating Black Or Copper Color

Tungsten Carbide Drill Bits For Concretes 3D Coating Black Or Copper Color

Specifications:

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

Coating

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

When to Use Tungsten Carbide Drill Bits

Tungsten carbide drill bits undergo a lot of stress when drilling a hole. The high-speed rotation of drill bits generates friction that, in turn, generates heat. The friction between drill bit and material leaves drill bits slightly duller after each use. The heating and cooling of the drill bit material can weaken the internal structure of the bit over time.

The Common Drill Bit

Common home repair drill bits are made of steel or High Speed Steel (HSS). Although inexpensive, common steel drill bits tend to wear out or break very quickly. HSS drill bits last longer than steel, but are more expensive. These types of drill bits are most effective when used on wood, drywall or plastics.

A Bit Stronger

Coated drill bits use another, harder material to coat steel or HSS drill bits. Titanium carbide or titanium nitride coatings can increase the lifespan of a drill bit by two to three times. These types of drill bits are useful when drilling hardwoods or thin metals.

Gets Tough

Tungsten carbide drill bits are among the strongest drill bits available for home use. Carbide drill bits are more expensive than steel or titanium coated drill bits, but will last longer and stay sharper.

Tungsten carbide drill bits are absolutely necessary when drilling stainless steel or other high-density materials. No other drill bit can handle the job.

Regardless of the material that you usually drill, a carbide drill bit will last up to 25 times longer than a common steel bit. This can make carbide drill bits an economical choice for woodworking, furniture building or other large-scale projects.

When cutting dense material, use a cutting lubricant to avoid generating excessive heat. Overheating a carbide drill bit will shorten its lifespan. Always let the drill bit do the work. Applying too much pressure will quickly dull your drill bit.

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