Carlyle 5.5mm HSS Cobalt 5% Drill Bit (CBD55)

Description

Genuine Carlyle · Part no. CBD55

This is the Carlyle 5.5mm HSS cobalt drill bit, CBD55: M35 steel with 5% cobalt, DIN 338, and a sharp 130-degree split point. 5.5mm is the medium clearance hole for an M5 bolt, a size used for many brackets, trims and small fittings, and the cobalt makes it suitable for stainless steel as well as mild steel.

Good to know

• Is 5.5mm right for an M5 bolt? Yes, as a medium-fit clearance hole, with room to line parts up. If you want to cut an M5 thread instead, drill 4.2mm and tap it.
• How do I drill a clean hole in thin panel steel? Use a pilot, back the panel with wood, and ease off as the bit breaks through so it doesn't snatch.
• What about rust protection afterwards? Deburr the hole and paint or prime the bare edge, so new holes in car panels don't start to rust.

Which one?

For M5 threads, the Carlyle 4.2mm HSS Cobalt 5% Drill Bit (CBD42) is the tapping size. The Carlyle 6mm HSS Cobalt 5% Drill Bit (CBD6) is the next size up.

Key features

• 5.5mm HSS cobalt drill bit
• Medium clearance size for M5
• 130-degree split point
• M35 steel, 5% cobalt
• DIN 338

Specification