Metal Cutting Hole Saws ASNOMY 3Pcs TCT Hole Saw Set For Hard Metal, 9/16 Inch Tungsten Carbide Tipped Hole 9 Piece Hole Saw Set With Pilot Bits Cutting Design: Carbide hole saw provide impact resistant teeth and prevent tooth loss. 13pcs Tungsten Carbide Hole Saw Set for Stainless Steel Hole cutter kits are designed with non-binding clean edges for easy cutting. RVIQI TCT Hole Saw Set, 13 Pcs Carbide Hole Saw Kit(16-53mm) with Sharp gears and wear-reducing chip protection provide long product life Designed with precision ground, sharp and tough gears and stepped pilot bits, drilling is more precise, smoother, faster and safer, leaving a perfect cut Concrete Hole Cutter Set at Becky Craig blog Precautions 1., When loading the drill into the drill, clamp the drill on the three planes of the shank., 2., Keep the hole drill perpendicular to the workpiece when drilling., 3., When drilling, the drilling speed should not be too low to avoid chipping caused by cutting edge jamming., 4., After drilling through the workpiece, keep the drill rotating to exit the workpiece., 5., When drilling continuously, use cutting fluid to cool the cutting edge. The package contains 9 hex wrenches and extra 2 pilot drill bits Multiple Size Options: 16 mm, 22 mm, 25 mm, 28 mm, 35 mm, 38 mm, 45 mm, 50 mm, 53 mm.
