The Bosch PRO 14 Piece Multi Material PC Plus Hole Saw Set is a professional bi-metal hole saw kit designed for electricians, plumbers, and contractors who need to cut through a wide range of materials on site. Constructed with high-cobalt 8% HSS bi-metal teeth, each hole saw delivers up to twice the service life of a standard HSS M3 hole saw. The enhanced tooth geometry promotes fast, smooth cutting through steel cladding, drywall, and other interior installation materials without the need to switch between different saw types. The set features Bosch’s Power Change Plus system, which simplifies the workflow considerably. Changing between hole saw sizes and pilot drill bits is faster and more straightforward, and removing material plugs from the cup is significantly easier — reducing downtime on the job. Ideal for first and second fix electrical and plumbing work, the set covers a broad range of diameters suited to pipe installations, electrical back boxes, and recessed lighting housings. Compatibility with the Bosch Power Change Plus keyless arbor ensures accurate, robust performance throughout. Features and Benefits: • Lasts up to 2x longer than a standard HSS M3 hole saw • Bi-metal construction with 8% cobalt HSS for extended life when cutting metal and tough materials • Enhanced tooth design for fast, smooth cutting across multiple materials • Power Change Plus system speeds up hole saw and pilot drill changes • Easier material plug removal reduces on-site downtime • Compatible with the Bosch Power Change Plus keyless arbor for accuracy and robustness • Covers 11 diameters from 20mm to 76mm Specifications: Diameter (mm): 20, 22, 25, 32, 35, 40, 44, 51, 60, 64, 76 Working Length: 44mm Net Weight: 1.375kg