A set of six precision HSS-M2 5 star lip and spur drill bits, supplied with a Vario adjustable TCT countersink that changes diameter to whichever drill bit it is attached. Simply unscrew the two hex head securing bolts, place over the drill bit and it instantly adjusts to accommodate the size of drill. The drill bits have a self-centring precision point, clean cutting spurs and twinland flute design for the best chip clearance, the Vario countersink can be adjusted to allow the drill bit to protrude to the required length and can countersink as well as counterbore. Contains drill bit sizes: 3, 4, 5, 6, 7 and 8mm. Supplied in a wooden case.