| Brand Name: | XRTOOLS |
| Model Number: | 1mm-20mm |
| MOQ: | 500PCS |
| Price: | 0.05-2.7$/PCS |
| Delivery Time: | 30-45days |
| Payment Terms: | T/T, L/C, D/P |
Three Flats Shank M35 Cobalt HSS Pilot Point Drill Fully Ground Bit For Metal
Features:
1. A Subland Drill is basically two drills of different diameters combined into one tool, retaining the individual characteristics
and proper geometry for each diameter.
2. The dual cutting diameters produce holes properly sized for each size screw.
3. Recommended for use with corded high-rpm drills.
4. The Subland Drill provides superior tool life compared to that of a basic step drill.
5. Useful for applications like cabinet making, fastening, woodworking, and other home and professional applications.
size :
| Diameter (mm) | Flute Length (mm) | Overall Length (mm) | Diameter (mm) | Flute Length (mm) | Overall Length (mm) |
| 4.0 | 43 | 75 | 8.0 | 75 | 117 |
| 4.2 | 43 | 75 | 8.5 | 75 | 117 |
| 4.5 | 47 | 80 | 9.0 | 81 | 125 |
| 9.5 | 81 | 125 | 15.0 | 114 | 169 |
| 10.0 | 87 | 133 | 15.5 | 120 | 178 |
| 10.5 | 87 | 133 | 16.0 | 120 | 178 |
| 12.0 | 101 | 151 | 17.5 | 130 | 191 |
| 12.5 | 101 | 151 | 18.0 | 130 | 191 |
| 13.0 | 101 | 151 | 18.5 | 135 | 193 |
| 13.5 | 108 | 160 | 19.0 | 135 | 198 |
intruduction :
1.Hss Cobalt drill bits are more expensive than other drill bits, but if you regularly drill through metal,
they are a good investment since they tend to last longer.
2.No center punch is needed—the aggressive 135° Quick-Cut points are self-centering and penetrate quickly
with lesspressure. Will not "walk" or "wander".
3.Thick core for increased rigidity in hard materials.
4.Ground flutes provide fast chip removal to maximize accuracy and efficiency along the full working surface of the bit.
5.DIN 338 series drill bits are ideal for many trade and industrial projects.
what is Cobalt Drill Bits
HSS is less strong than the cobalt drill bits. Cobalt Drill bits are different from HSS with the mixed cobalt percentage.
When the cobalt is added 5%, it is called 5% cobalt, and 8% is called super cobalt. These tools are really hard, strong,
and heat resistant than regular HSS. So Cobalt drill bits can be run faster and high-speed feeds.
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