Heat treated tool steel countersink set with a HSS drill.
Trend SNAPCS8 Countersink with 7/64in Drill
Trend SNAP/CS/10 Countersink with 1/8in Drill
Trend GD/6MM Snappy Glass Drill Bit
Trend Snappy Snap/SQ/2 - Square No2 Bit - Pack Of 3
Trend Snappy Square No1 Bit Pack Of 3 Pack 1 SNAP/SQ/1
Faithfull FAICS58 16mm Carbon Countersink
