5 Piece HSS Centre Drill Set
Original price
$106.47
-
Original price
$106.47
Original price
$106.47
$138.00
$138.00
-
$138.00
Current price
$138.00
- 5 Piece HSS Centre Drill Set
- Bright Finish HSS Centre Drill 118º / 60º 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 60º countersink which provides a bearing surface for the 60º 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 machine's calibrated hand wheels.
- The hole is then started using the centre drill.
- The large diameter shank on the centre drill holds the drill point right on centre.
- Once the hole is started, the centre drill is replaced with a drill of the desired diameter and the finished hole is then drilled.