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.