Noods
Member
- Messages
- 979
- Location
- Ipswich
Can anyone tell me please when using countersink bits is there a correct way to choose which bit to use.. on my set above it has these numbers marked but, are they a reference to the drill bit used to make the hole? Eg 8mm hole and you use the 8.3 bit.. or is it relevant to the head on the countersink bolt/screw you wish to fit.. ?
Would be nice to know..
Thanks