The Starrett KDC10021 is a professional-grade 12-piece electricians hole saw set engineered for deep cutting through multiple materials. This comprehensive kit combines Starrett's aggressive dual-pitch tooth design with enhanced cobalt HSS teeth, delivering superior heat and wear resistance for extended product life. Featuring an impressive 51mm cutting depth—10mm deeper than standard hole saws—this set excels at cutting through thick solid materials and tubes with wall thickness greater than 3mm. The extended depth is particularly advantageous when cutting through both sides of conduit and pipe work, a common requirement in electrical installations. The aggressive tooth geometry ensures efficient material penetration and kerf clearance across metals, wood, plastic, and plaster. The bi-metal construction provides the flexibility to withstand demanding applications whilst maintaining sharp cutting edges. Reduced vibration during operation delivers a smooth cutting action, minimising user fatigue during repetitive or prolonged use—essential for electricians working on extensive installations. The kit includes two arbors (A1E and A2E) with extended length pilot drills specifically designed to accommodate the deeper cutting depth, plus an ejector spring for quick plug removal. Features and Benefits: • Extra cobalt HSS teeth for enhanced heat and wear resistance • 51mm cutting depth ideal for cutting through both sides of thick-walled tubes • Aggressive 4-6 TPI tooth design for efficient material penetration • Reduced vibration and smooth cutting action minimises user fatigue • Versatile bi-metal construction suitable for metals, wood, plastic and plaster Specifications Pieces in Kit: 13 Cutting Depth metric: 51mm Cutting Depth imperial: 2" Teeth per Inch (25mm): 4-6 Teeth Type: HSS Country of Origin: CN Kit Contents metric: Deep cut hole saw sizes 20, 22, 25, 29, 35, 44, 51, 64, 68, & 76mm; Arbors A1E & A2E; Ejector spring A7 Kit Contents Imperial: Deep cut hole saw sizes 25/32, 7/8, 1, 1-1/8, 1-3/8, 1-3/4, 2, 2-1/2, 2-11/16, & 3"; Arbors A1E & A2E; Ejector spring A7
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