Description of Bi-Metal Positive πͺ Cutting Tools for Fiberboard
>4-1/4 inch Hole Saw (WITHOUT ARBOR) made of top HSS & Bi-Metal for Heavy Dusty capability improved durability with Rust-proof. Drilling with sharper Positive Rake Tooth cuts material faster than other brand. >This 4-1/4 Hole Saw Blade is design for drilling metal sheet, drywall, plastic pipe, wood, PVC, and fiberboard hole. >4-1/4 inches hole diameter suits for installing 4-1/4-inch locksets and deadbolts, also for grommet hole, recessed light and can light hole Drilling. >With the non-binding clean edge design, this hole saw cuts smooth and easy. The spring on the drill would automatically pushes the disc out of the saw immediately after completing the hole. >The bit universally attaches to any 1/2" drill; Cutting hole depth: 38mm.