Luckyway M35 Cobalt Drill Bit 1/16" 20 Pcs T00113A

20-Piece 1/16" Cobalt Drill Bit Set

This Luckyway M35 cobalt drill bit set contains twenty 1/16-inch jobber-length twist bits made from M35 high-speed steel with 5% cobalt. They are designed for drilling hard metals such as stainless steel and cast iron, plus copper, aluminum, wood and plastic. A durable plastic storage case keeps the bits organised and portable. The 135-degree split-point tip enables self-centering to prevent walk-off on hard surfaces.

Who Benefits and Who Needs Alternatives

Metalworkers and DIY users who repeatedly drill 1/16-inch holes in stainless steel, cast iron or other hard alloys gain longer bit life from the cobalt construction. The tri-flatted shank locks securely in three-jaw chucks, reducing spin-out on drill presses and handheld drills. Buyers who require multiple diameters, larger holes or specialized materials such as masonry, glass or hardened tool steel should consider other sets.

M35 Cobalt with 135-Degree Split Point

The decisive specification is the M35-grade steel with 5% cobalt content combined with a 135-degree double rear edge angle. This composition provides the heat resistance and hardness needed for repeated drilling in stainless steel and cast iron without rapid dulling. The split-point geometry ensures immediate centering, while the jobber length and tri-flatted shank fit standard drill presses and power tools.