roofman
Purveyor of fine English buckets and mops
- Messages
- 11,702
- Location
- North West with water on 3 sides
Today i was making a small crankshaft table lamp, crank in the lathe and bored a 10mm hole right through the centre without much bother...needed to put a hole through the bottom, 90 degree to the centre line to exit the cable. Hardened surface and no drill would touch it as expected...Found a new 8mm masonry bit and it chewed through like butter at high speed with no coolant or lube needed, job done. The same principle as those "wonder drills" on the shopping channels, just 2 sharp bits of carbide and plenty of spindle speed....