What materials are these twist drill bits made of?

They are manufactured from high-quality High-Speed Steel (HSS), with options available in 4341, M2, and M35 grades to suit different metal drilling requirements.

What sizes are included in this 115-piece set?

The comprehensive set features sizes ranging from 1/16 to 1/2, wire gauge sizes 1# to 60#, and letter sizes A to Z, making it ideal for non-fractional-sized hole requirements.

What is the difference between the 118° and 135° split point tips?

The 118° chisel-point tip is designed for general-purpose drilling applications, while the 135° split-point tip is engineered for heavy-duty metal drilling, reducing bit walk and providing faster penetration.

Are these drill bits compatible with standard drills?

Yes, they feature a standard straight shank design, making them fully compatible with most portable hand drills and stationary drill press machines.

What surface treatments are applied to these drill bits?

They come with Black Oxide or Sand Blasted surface treatments, which help to reduce friction, prevent wear, and prolong overall tool life.

What packaging options are provided for this set?

The standard packaging is a sturdy metal box designed for easy organization and protection. We also accept customized packaging requests to meet specific business needs.