5 Piece HSS Centre Drill Set 1/16-1/2" 21 Piece HSS Cobalt

1/16-1/2" 21 Piece HSS Cobalt Drill Set ABS Case

Non-hazardous ingredients

5-HSS Twist Drills

Extremely long service life

5 Piece HSS Centre Drill Set 1/16-1/2" 21 Piece HSS Cobalt5 Piece HSS Centre Drill Set Bright Finish HSS Centre Drill 118 60 Set Centre Drills are used with a lathe to centre drill stock for mounting in the lathe. They are designed to drill a small diameter pilot hole followed by a 60 countersink which provides a bearing surface for the 60 point of the lathe centre. Centre drills are also used extensively with milling machines to accurately start holes. The hole locations can be dialled in using the milling