The Starrett KMP11021 TCT General Purpose Holesaw Kit contains a selection of sizes to cover a variety of different jobs. TCT holesaws offer a smooth cut with minimal heat build up. With carbide tipped teeth for outstanding cutting performance and product durability. They will power through: wood MDF plastics and ceramic wall tiles. With a cutting depth of 54mm (2.1/8in) for cutting through strapping and joists. Suitable for use in mains and battery powered tools. Packed in a sturdy EVA carry case. Contains: 11 x Holesaws: 19 22 29 35 38 44 51 57 64 68 76mm2 x Arbors: A1E A17-38EPTDSTRKMP11021