Cutting edges induction hardened and fitted with an opening spring for convenient working
Soft PVC coated jaws to avoid scratching alloy wheels
This Faithfull Bit Roll has the following specification:
Fully hardened high carbon steel bit
Silverline Plumbers Bi-Metal Holesaw Kit 9pce 19 - 57mm Dia Year_1974-1993 5 door Cutting edges induction hardened andVariable pitch holesaws in bi metal construction. Hardened HSS teeth, flexible high carbon steel backing. Used for cast iron, stainless and structural steel, bronze, copper, PVC, alloyed and non alloyed aluminium, acrylic and wood. Contents: 19, 22, 29, 38, 44 and 57mm holesaws. Includes 2 arbors and mandrel adaptor. Contents: 19, 22, 29, 38, 44 & 57mm holesaws Includes 2 arbors & mandrel adaptor, complete with carry caseUsed for working in cast iron,