Description of SUNGATOR 6 Piece Bi Metal General Purpose
【DURABLE】: Construction of high quality Bi-Metal for rust proof, 2mm thick, much more durable and can offer a up to 50% longer life; great heat resistance. 【GREAT HOLE CUTTING】: Sharp teeth perfect for hole cutting on metal, wood, PVC board, plastic and drywall; clean and smooth cut; high precision; cutting depth about 1-3/8 inch. 【PROFESSIONAL AND SAFE】: The hole saw arbor is designed with 2 locking pins which can firmly fix the hole saw, improving stability, safety and preventing over tightening. 【EASY TO USE】: Tool-free, fast and easy to operate. The pilot drill can be replaced by removing the set screws with the hex key; 4 slots design for easy plug removal after using; compatible with most drills of other manufacturers. 【COMPLETE SET】: Includes 3 hole saws: 3", 4", 4-1/4" for needs in different situations; 1 x Spare Pilot Drill for replacement; 1 x 7/16" Mandrel; 1 x Hex Key.