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eBay£351.40Visit shop ABRACS Hss-Co Cobalt (M35) Drill Bit Set (170 Pieces) - DACK2
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The Mehr DACK2 HSS-Co Cobalt Drill Bit Set is designed for professional mechanics, engineers, and serious DIY enthusiasts who require high-performance cutting tools capable of handling hard metals. Its primary benefit lies in the M35 cobalt steel composition, which offers superior heat resistance and longevity compared to standard high-speed steel bits; however, users should exercise caution as cobalt bits are inherently harder and more brittle, making them susceptible to snapping if handled with excessive lateral pressure.
| Model Part Number | DACK2 |
|---|---|
| Brand | ABRACS |
Yes, they will work effectively on wood, though they are specifically optimized for metalwork.
These bits are designed for rotary drilling. Do not use them in hammer mode as the impact will likely cause the brittle cobalt bits to shatter.
M35 cobalt (5% cobalt) allows the bit to maintain its hardness at much higher temperatures, which is essential when drilling through stainless steel or other hard alloys.
Yes, using a high-quality cutting oil or lubricant is highly recommended to extend the life of the bit and ensure a cleaner hole.
Yes, it is a sturdy, professional metal case designed to withstand the rigors of a workshop environment.
Use a center punch to create a starter divot before beginning to drill.
Reduce drill speed (RPM), increase feed pressure, and ensure ample cutting fluid is applied.
Ensure your drill is held at a perfect 90-degree angle and avoid any side-to-side (wobbling) movement.
This set is compatible with all standard drill chucks, including keyed and keyless varieties. To ensure a long service life, always store the bits in their designated slots in the metal case to prevent clashing and dulling. After working with oily coolants, wipe the bits clean with a dry cloth before returning them to the case to prevent corrosion. Periodically check the bits for signs of blunting; if the bit begins to push against the metal without cutting, it is time to sharpen it using a specialized diamond grinder or replace it from your stock.
