The square underneath the domed head pulls into the timber being fastened
TC tips are ground with greater clearance for routing of resinous material
ideal for fixing heavy objects securely on soft faced partition boards
Hardened and tempered blade provides great strength and toughness during operation
Fire resistant due to all steel material
Lenox Bi-Metal Hole Saw 38mm Fixings The square underneath the domedBi Metal Hole saw designed for the professional and made to provide long lasting performance. Cuts through aluminium, copper, iron, stainless steel, wood, zinc. Features: High Speed Cutting Edge Thick backing plate, gives robustness Bi Metal Construction, long life, shock resistant Compact design 4 6 Variable TPI, reduced harmonic vibration Variable gullet depths, more efficient chip clearance