Carlyle 2mm HSS Cobalt 5% Drill Bit (CBD2)

Description

Genuine Carlyle · Part no. CBD2

Carlyle CBD2 gives you one 2mm drill bit in cobalt high speed steel (M35, 5% cobalt), made to DIN 338 with a 118-degree split point. A 2mm hole is a common pilot for small self-tapping screws in sheet metal and plastic trim, and the cobalt keeps the edge working in stainless steel and hardened parts where ordinary bits blunt.

Good to know

• Is 2mm right for my screw's pilot hole? It depends on the screw: the pilot should be about the size of the screw's core, not its thread, so check against the screw or its pack.
• How do I drill thin sheet cleanly? Back it with a piece of wood and drill with light pressure, so the bit doesn't grab and tear the metal as it breaks through.
• Why does a cobalt bit snap if I'm careless? It is harder than plain HSS but more brittle, so side loads and wobble break small sizes.

Which one?

For a slightly larger pilot, the Carlyle 2.5mm HSS Cobalt 5% Drill Bit (CBD25) also drills the M3 tapping size. The Carlyle 1.5mm HSS Cobalt 5% Drill Bit (CBD15) is the next size down.

Key features

• 2mm HSS cobalt drill bit
• M35 steel with 5% cobalt
• 118-degree self-centring split point
• Made to DIN 338
• Suits stainless and hard metals

Specification