MILWAUKKEE Hole Dozer Bi-Metal Hole Saw Set w/ Cobalt Drill Bit Set (57-Piece). Hole saw drills through wood, plastic, aluminum, metal. Bi-metal construction for increased wear resistance. Designed for rapid chip removal. Hole Dozer General Purpose Bi-Metal Hole Saw Set with Cobalt Drill Bit Set (57-Piece). Milwaukee Bi-Metal General-Purpose HOLE DOZER Hole Saws are engineered for longer life and faster cutting performance and is the Most Durable Hole Saw, The hole saws feature RIP GUARD teeth built with more steel behind the cutting edge for added strength, giving increased productivity on the job site and better hole quality. Each HOLE DOZER is coated with a low friction, thermoset paint that provides faster cutting speed in wood and more holes cut per battery charge. The Plug Jack enables access into the cup for both thick and thin material removal, eliminating wasted downtime between holes. Milwaukee RED HELIX Cobalt Drill Bits are engineered for extreme durability and longer life in hard metal applications. The Milwaukee Cobalt drill bits are designed with a VARIABLE HELIX that includes an aggressive 35° Helix Angle which ends at 15°. The 135° split point tip delivers a precision start and prevents walking for fast, accurate holes in Hard Metal, PVC and wood. The tapered drill bits feature a new ENHANCED TAPERED WEB that strengthens the bit’s core to increase flute durability. The cobalt twist drill bits are ideal for tough applications, providing up to 15X life vs. Black Oxide Drill Bits. Coated with a low friction, thermoset paint that provides faster cutting speed in wood and more holes cut per battery charge. Equipped with plug jack, an all-access slot design for fast plug removal. Features bi-metal construction with 8% cobalt for increased wear resistance. Hole Saws for cutting through clean wood, nail embedded wood, plastic, aluminum, metal and stainless steel. Cobalt alloy for up to 15X Life vs. ENHANCED TAPERED WEB strengthens the bits core. VARIABLE HELIX Design for rapid material extraction. Bi-Metal HOLE DOZER Hole Saw Set (28-Piece) Includes 22 Hole Saw Sizes: 3/4 in. 3 arbors, 6 total pilot bits, hex key and case. Cobalt Red Helix Drill Bit Set (29-Piece) Includes: (2) 1/16 in. Cobalt Drill Bit, (2) 5/64 in. Cobalt Drill Bit, (1) 3/32 in. Cobalt Drill Bit, (2) 7/64 in. Cobalt Drill Bit, (2) 1/8 in. Cobalt Drill Bit, (2) 9/64 in. Cobalt Drill Bit, (2) 5/32 in. Cobalt Drill Bit, (1) 11/64 in. Cobalt Drill Bit, (2) 3/16 in. Cobalt Drill Bit, (1) 13/64 in. Cobalt Drill Bit, (1) 7/32 in. Cobalt Drill Bit, (1) 15/64 in. Cobalt Drill Bit, (2) 1/4 in. Cobalt Drill Bit, (1) 5/16 in. Cobalt Drill Bit, (1) 3/8 in. Drill Bit Type(s) Included. Brad/Pilot Point, Hole Saw, Twist. Min Chuck Size Required. 16.5 inches x 4.75 inches x 9.5 inches. Weight: 0.0 grams.