Carlyle 1mm HSS Cobalt 5% Drill Bit (CBD1)

Description

Genuine Carlyle · Part no. CBD1

Carlyle CBD1 is a 1mm HSS cobalt drill bit, the smallest in this range, made from M35 steel with 5% cobalt and ground to DIN 338. Its 118-degree split point starts without wandering, which matters at this size when you are drilling tiny pilot holes, fine holes in thin sheet or drilling out small broken pins in hard metal.

Good to know

• Can I use a 1mm bit in a cordless drill? Yes, if the chuck closes down far enough to grip it; run it fast, push gently and keep it dead straight, as a bit this thin breaks easily.
• Is it worth a drill stand? For more than a hole or two, yes; a stand holds the bit square and greatly reduces breakages at this size.
• Will it go through stainless? Yes, that is what the cobalt is for; go slow enough that it cuts rather than rubs, and use a drop of cutting fluid.

Which one?

For a slightly bigger small hole, the Carlyle 1.5mm HSS Cobalt 5% Drill Bit (CBD15) is the next size up.

Key features

• 1mm HSS cobalt drill bit
• M35 steel, 5% cobalt
• 118-degree split point
• DIN 338 precision ground
• Longer life than plain HSS

Specification