General description High-speed variable pitch bi-metal hole saw designed for precise and clean cuts in metals, plastics, and wood. Capable of cutting holes up to 35mm (1.3/8”) deep. Constructed with a hardened M3 steel cutting edge welded to a durable alloy steel body for enhanced longevity and resistance to shattering. Technical specifications Maximum cutting depth: 35mm (1.3/8”) Material: Bi-metal with M3 steel cutting edge and alloy steel body Number of side slots: Four, for easy removal of cut material (slug) Threaded spindle: Female threaded for fixing to a 9.5mm arbor Compatibility and accessories Compatible with standard power drills Requires a 9.5mm arbor for attachment Recommended lubricant for metal cutting: Stock No. 76109 - Metal Cutting Lubricant, 400ml Installation Attach the hole saw to a compatible 9.5mm arbor and secure the assembly onto a power drill. Usage Use with appropriate drill speed and pressure for clean, accurate cuts. Apply lubricant when cutting metal to