Monument high quality holesaws have an integral shank with M42 Cobalt High Speed Steel cutting blades with variable pitch teeth. Supplied with a split point HSS pilot drill which reduces skidding on convex surfaces, eliminating the need for pre-punching.
For use on stainless steel, cast iron, mild and galvanised steel, aluminium, copper, brass, plastics and wood.
Generally no cutting fluids are required, but for cast iron use parafin, and for stainless steel use a cutting compound.
The Monument 1848E Vari Pitch One Piece Holesaw has the following specifications:
Depth of cut: 32mm.
Working Speeds in mild steel: 390rpm, cast iron: 260rpm, and stainless steel: 195rpm.