The faithfull 52mm varipitch bi metal hole saw is an excellent diameter for plumbing installations, recessed lighting, and general construction applications. This 52mm holesaw is perfectly sized for drilling holes for waste pipes, installing downlighters, creating openings for plumbing fixtures and standard fittings, and general purpose hole cutting across multiple trades. Constructed from premium bi metal material with 8% cobalt content, this 52mm holesaw offers outstanding heat and wear resistance, ensuring reliable performance over repeated professional use. The precision set teeth provide aggressive material penetration combined with efficient swarf clearance for smooth, rapid cutting action across various substrates. This 52mm diameter holesaw cuts effortlessly through stainless steel, steel, aluminium, sheet metal, mild metal, non ferrous metals, cast iron, soft and hard woods, and pvc. Compatible with most variable speed power drills, it handles both thin and thick gauge materials with precision and confidence. Features and benefits bull 52mm diameter for plumbing and lighting installations bull bi metal with 8% cobalt for extended durability bull precision set teeth for fast, efficient cutting bull versatile across metals, woods, and plastics bull suitable for variable speed power drills specifications size mm 52 material bi metal pitch variable cutting depth 38mm diameter 52mm.