LANIAKEA 7 Inch Bi-Metal Hole Saw 178MM M42 Annular Hole Cutter HSS Variable Tooth Pitch Holesaw Set with Arbor Blue for Cornhole Board Wood Metal Plastic Fiberboard : Amazon.com.au: Home Improvement
Lenox 2059710 108mm (4-1/4") T3 Speed Slot Bi-Metal Hole saw
QWS - Welding Supply Solutions - GOLD SERIES BI-METAL
7.5Inch Hole Saw Drill Bit HSS Hole Cutter with Arbor for Wood and Metal (7-1/2''(190mm Hole Saw)) : Amazon.com.au: Home Improvement
175mm (6-7/8 inch) Metal Steel Hole Saw with 2 Drill Bits ,Hole Cutter for Thick Metal ,Stainless Steel ,Iron and Wood (175mm ( 6-7/8 inch )) : Amazon.com.au: Home Improvement
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M. K. Morse MHST27 | 1-11/16 Inch Dia. Hole Saw, For Hardwood, 1-15/16 Inch Max. Cutting Depth | Raptor Supplies Australia