hsawbit HSAWBIT HSS Bi-Metal 175mm Hole Saw, M42 Fast Cut Hole Cutter 40mm Cutting Depth with SDS Plus Shank, For Stainless Mild Sheet Wood Plastic Various Materials

What are the hole saws used for ? They are used to cut perfectly round holes in a wide variety of materials. Widely used in plate holes, household wood, galvanized pipe, fire hose, plastic, gypsum board and other opening operations. Power Drill Required A hole saw is designed to attach to a POWER DRILL (including pistol drill, bench drill, vertical drill press) and rotate at a high speed. As the saw spins, the teeth cut into the chosen material, removing a circular piece (slug) as it saws through. BENEFITS & ADVANTAGE BI-Metal + High Speed Steel(HSS) Extremely fast sawing with minimal expenditure of force High concentric and side-stroke precision They can cut holes with much larger diameters than traditional drill bits. Because they only cut out the perimeter line of the hole, they are much more EFFICIENT than a spade drill or twist drill. Common Applications Steel, stainless steel, cast iron, copper, bronze, aluminum, wood and plastic. INSTRUCTIONS Pre-drill using light contact pressure. Continue drilling with minimal, even pressure; avoid oscillating while drilling. Follow speed guidelines and use coolant. Allow hole saw to “air” when using with wood and wood alternatives. The saw comes to a complete stop on your material before pulling it away.