TechTool M3 Bi-metal Hole Saw 89mm (09A560C) Freud ProGuard Finish is 5 times

ProGuard Finish is 5 times more effective than the next leading brand in preventing rust

38mm Option:  Triton Tools Premium wood chisel with high quality hardened chrome vanadium steel blade for superior performance and edge retention

Long life: robust and durable

Makita DTD154Z 18V LXT Brushless Impact Driver (Bare Unit)

TechTool M3 Bi-metal Hole Saw 89mm (09A560C) Freud ProGuard Finish is 5 timesTechTool M3 Bi metal Hole Saw 89mm (09A560C) Heavy duty, variable pitch, bi metal construction Hardened HSS teeth Flexible high carbon steel backing For cast iron, stainless and structural steel Alloyed and non alloyed aluminium, bronze, copper, PVC, acrylic and wood