Carlyle 1.5mm HSS Cobalt 5% Drill Bit (CBD15)

Description

Genuine Carlyle · Part no. CBD15

The Carlyle CBD15 is a single 1.5mm drill bit in M35 high speed steel with 5% cobalt, ground to DIN 338 with a 118-degree split point that centres itself. It is for small, precise holes in steel, stainless and other tough metals: pilot holes for small screws, holes in thin brackets and starting holes before stepping up to a bigger bit.

Good to know

• How do I stop a 1.5mm bit snapping? Keep the drill square to the work, use light steady pressure and high speed, and don't let the bit bend or lever sideways.
• Why cobalt for such a small bit? Cobalt steel stays sharp in stainless and hard metals where plain HSS soon blunts, but it is more brittle, so hold the drill steady.
• Do I need a centre punch? The split point helps it start cleanly, but a light punch mark still stops it skating on curved or polished metal.

Which one?

The Carlyle 1mm HSS Cobalt 5% Drill Bit (CBD1) is the next size down, and the Carlyle 2mm HSS Cobalt 5% Drill Bit (CBD2) the next size up.

Key features

• 1.5mm HSS cobalt drill bit
• M35 steel with 5% cobalt
• 118-degree split point, self-centring
• Precision-ground to DIN 338
• For stainless steel and tough metals

Specification