HSS Counterbore Drill Set – 6 Piece M3, M4, M5, M6, M8, M10

Description

Alcock counterbore drills are manufactured from M35 grade HSS including 5% cobalt , this high-grade material offers superior drilling performance and durability. Each drill includes a Titanium Aluminium Nitride (TiAlN) coating to help improve the performance & longevity of the drill.

The Alcock counterbores are used when a fastener is required to sit flush with or below the level of a workpiece’s surface.
Features
Industrial quality M35 Grade HSS including 5% Cobalt
Precision ground
TiAlN coating
Plain shank
6pc set

To suit socket head cap screw sizes
M3 x 5mm shank
M4 x 5mm shank
M5 x 8mm shank
M6 x 8mm shank
M8 x 12mm shank
M10 x 12mm shank