The HSS drill bits are gripped by a spring steel collet into the hex shaft.

* The hex shanks snap into the Quick Chuck.
* The hex collar, is supplied in the sets to enable drills to be removed with two spanners.

Includes:
* 1 x 1mm drill bit
* 1 x 2mm drill bit
* 1 x 3mm drill bit
* 1 x 4mm drill bit
* 1 x 5mm drill bit
* 1 x 6mm drill bit
* 1 x 7mm drill bit