Faithfull FAIHSKE Universal Varipitch Holesaw Electrician's Kit 9 Piece 16-51mm

Contains the six most frequently used electricians holesaw sizes, along with two arbors and an adaptor.
High speed steel bi-metal saws have specially hardened variable pitch teeth for fast smooth cutting.
Bi-metal saws offer increased safety as they will not shatter under load.
Used to cut perfect holes in a wide variety of materials including wood, chipboard, plywood, non laminated plastics, plasterboard and non ferrous metals.
Suitable for use in most variable speed power drills.
Supplied in a sturdy zip-up case.
Contains:
6 x Varipitch Holesaws: 16, 20, 25, 32, 40 and 51mm.
1 x 3/8in Hexagon Arbor for Holesaws 14-30mm.
1 x 7/16in Hexagon Arbor for Holesaws 32-152mm.
1 x Sturdy Adaptor.