• HSS DRILL BIT :HSS cobalt drill bit set for hardened steel has excellent cutting performance, drill bit set 29pcs can be used for a long time, The cutting edge is hardened and honed for sharpness, with superior sharpness, accurate cutting without shaking
• M35 COBALT CHARACTERISTICS : M35 cobalt drills bit set is effective in drilling tough, high tensile strength materials,drill bit is especially good at cutting hard metals such as stainless steel, cast iron, superalloy, titanium alloy, hard plastic and wood. It can also be used in soft materials
• 135° SPLIT POINT: Cobalt drill bit set for hardened steel is 135° split point tip and torsional design to improve cutting speed, self-centering, prevent walking, and faster chip and particle removal.

1. Are you are a manufacturer?

A: Yes, we have our own factory, and have excellent research team, and strict quality inspection procedures. We will sure don't
have middleman. Also welcome you visit our factory.

2. What about your quality?

A: We have strict quality inspection procedures, and each of our ner products have been tested before launching it in the market.

3. Can you provide samples?

A: Yes, we can provide samples for you, yet the express fee need be paid by you.

4. If you don't have the size I need, can I have a requirement?

A: Yes, if the size you need we don't have, we can manufacturer as your requirement. It will have a minimum order.