12pcs 1/8" Cobalt Jobber Drill Bit Set M35 HSS for Stainless Steel
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- 【12Pcs 1/8" Cobalt Drill Bits】TechHyren 12pcs set of 1/8" M35 high-speed steel cobalt twist drill bits meets your diverse drilling needs
- 【M35 Cobalt High Speed Steel】Made of industrial-grade M35 cobalt high-speed steel (5% cobalt content), its hardness (HRC65.5-68) and wear resistance far exceed those of ordinary high-speed steel. Even under the high temperatures generated by high-speed drilling, it can still maintain the hardness and toughness of the blade, effectively preventing edge curling and breakage, and extending the service life
- 【Application range】It is specially designed for stainless steel, alloy steel, cast steel and other hard metals, and can also be used for plastics, aluminum alloys and wood
- 【Fully Ground Process & 135° Split Point】The spiral grooves are fully ground, ensuring smooth and rapid chip removal, effectively reducing friction and heat buildup. The 135° self-centering tip design allows for precise positioning of the drill bit, eliminating the need for pre-punching to start drilling, improving efficiency and accuracy
- 【After Sales Service】If you have any problems after your purchase, please contact us and we'll get back to you promptly
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Estimated shipping
Select a product to estimate shipping.What materials can I drill through?
Hardened Metal、Stainless Steel、Copper、Aluminum、Cast iron、Wood、Plastic
Is this drill bit set good for beginners?
Beginner-friendly features:
135° split-point drill tip design prevents drill bit slippage and helps with precise positioning.
Applications – Widely suitable for wood, plastic, soft metals, and stainless steel.
How long do they last?
Due to the use of M35 HSS, these drill bits are typically more durable than standard HSS drill bits. Heat treatment allows the drill bits to achieve a high hardness, so they maintain high hardness and wear resistance even at high temperatures.
Product details
| Main Specification | |
|---|---|
| Surface Recommendation | Wood or Metal or Plastic or Stainless Steel |
| Manufacturer | Tech Hyren |
| Unit Count | 12 Count |
| Cutting Diameter | 3.18 millimeters |
| Shank Type | Round |
| Tool Flute Type | Spiral |
| Brand | Tech Hyren |
| Cutting Angle String | 135 Degrees |
| Number of Pieces | 12 |
| Material | High Speed Steel (Hss) |
| Finish Type | Uncoated |
| Product information | |
| Set Name | 12pcs Cobalt Drill Bit Set |
| Technical Details | |
| Part Number | HRT0004 |
| Material Type | High Speed Steel (HSS) |
| Number of Flutes | 2 |
| Style | |
| Finish Types | Uncoated |
| Others | |
| Item Highlight | Metal Drill Bits for Cast Iron or Wood and Plastic Drilling Projects or with Portable Storage Case |
| Product Type | Jobber Drill Bits |