The Bosch 9 Piece Electricians HSS Bi-Metal Hole Saw Set is a professional-grade cutting set designed for electricians and contractors working across a range of materials including wood, metal, and plastics. Each hole saw in the set features a Vario tooth strip configuration, engineered to glide through material cleanly and deliver consistently smooth cuts. The bi-metal HSS construction incorporates 8% cobalt alloy, providing enhanced heat resistance and a significantly reduced risk of tooth breakage during prolonged use. This set is particularly well suited to first and second fix electrical work, where clean, accurate holes are essential for back boxes, conduit entry points, and cable routing through timber or metal studwork. The hole saws are compatible with all standard adapters on the market, making them a practical addition to an existing kit without the need for specialist arbors. Features and Benefits: • Vario tooth strip configuration for smooth, clean cuts through a variety of materials • Bi-metal HSS construction with 8% cobalt alloy for improved heat resistance and durability • Reduced risk of tooth breakage for extended service life • Compatible with all standard hole saw adapters on the market • Suitable for cutting wood, metal, and plastics Specifications: Net Weight: 0.740 kg Diameter: 20mm, 25mm, 32mm, 38mm, 51mm, 64mm Working Length: 38mm Contents: Set description: 1. Set