Carlyle 3mm HSS Cobalt 5% Drill Bit (CBD3)

Description

Genuine Carlyle · Part no. CBD3

The Carlyle 3mm HSS Cobalt 5% drill bit (CBD3) is a single M35 bit to DIN 338, the first size in the range with the 130-degree split point. 3mm is a handy all-round pilot size for drilling steel brackets, exhaust hangers and stainless fittings before you open the hole up, and the cobalt holds its edge in tough metal.

Good to know

• Is 3mm a good pilot size? For larger holes in metal, a pilot first helps the big bit cut easily and on centre; 3mm is a common first step.
• Do I need cutting fluid? In stainless and thicker steel, yes; a few drops keep the tip cool and make the bit last much longer.
• Can I use it in a hand drill? Yes, but keep the drill straight; cobalt bits are hard but brittle, and levering them sideways can snap them.

Which one?

For 1/8 inch pop rivets, the Carlyle 3.2mm HSS Cobalt 5% Drill Bit (CBD32) is the size to choose. For M3 tapping, use the Carlyle 2.5mm HSS Cobalt 5% Drill Bit (CBD25).

Key features

• 3mm HSS cobalt drill bit
• 130-degree split point
• M35 steel with 5% cobalt
• Precision ground to DIN 338
• Long life in hard metals

Specification