Precision ground 82 deg tip for countersinking most machinable metals, wood or plastic. High-speed steel with black oxide coating for corrosion resistance. 5-flute design reduces chatter for smoother drilling and extended life. Set includes one 1/2 in, one 5/8 in and one 3/4 in countersink.

IRWIN Insert Bit Set, Steel, Black Oxide, Case, 51 -Piece, Includes: (1) #0, (3) #1, (4) #2, (3) #3 Phillips Screw Driving Bits, (1) #0, (2) #1, (4) #2, (3) #3 Square Screw Driving Bits, (1) 4-5, (1) 6-8, (2) 8-10, (1) 10-12 Slotted Screw Driving Bits, (1) T10, (2) T15, (2) T20, (2) T25, (1) T27, (2) T30 Torx Screw Driving Bits, (1) 5/64, (1) 3/32, (1) 7/64, (1) 1/8, (1) 9/64, (1) 5/32, (1) 3/16 Hex Screw Driving Bits, (1) #1, (1) #2, (1) #3 Star Screw Driving Bits, (1) #4, (1) #6, (1) #8, (1) #10 Two Pin Style Screw Driving Bits, (1) 2-1/4 in Bit Holder

IRWIN? Impact Performance Series? lobular nutsetters are built for maximum durability, performance and long life with impact tools. They are designed to drive the fastener from the side, rather than forcing the corners to turn, maintaining the true shape of the fastener and dramatically reducing breakage and damage from stripping. The lobular design also provides more clearance on the corners of the fastener where paint build-up often occurs. They are available with or without powerful rare earth magnets that hold fasteners securely in place. They have a black oxide finish that resists corrosion and increases the life of the nutsetter. Plus, with a 1/4 in quick-change shank, they're designed to work with all types of impact and rotary drivers.

IRWIN? Impact Performance Series? lobular nutsetters are built for maximum durability, performance and long life with impact tools. They are designed to drive the fastener from the side, rather than forcing the corners to turn, maintaining the true shape of the fastener and dramatically reducing breakage and damage from stripping. The lobular design also provides more clearance on the corners of the fastener where paint build-up often occurs. They are available with or without powerful rare earth magnets that hold fasteners securely in place. They have a black oxide finish that resists corrosion and increases the life of the nutsetter. Plus, with a 1/4 in quick-change shank, they're designed to work with all types of impact and rotary drivers.

Innovative pressed carbide tip with aggressive cutting angles for faster drilling and longer bit life. One-piece construction withstands higher torque loads than standard quick change bits. Black oxide finish resists corrosion and increases life of bit. 1/4 in quick change shank is designed to work with impact drivers and reduces slipping in standard drill chucks.

Innovative pressed carbide tip with aggressive cutting angles for faster drilling and longer bit life. One-piece construction withstands higher torque loads than standard quick change bits. Black oxide finish resists corrosion and increases life of bit. 1/4 in quick change shank is designed to work with impact drivers and reduces slipping in standard drill chucks.

Drills and extracts damaged screws and small bolts.

Drills and extracts damaged screws and small bolts.

Drills and extracts damaged screws and small bolts.

IRWIN Impact Performance Series fastener drive bits are engineered for maximum durability and long life with impact drivers. These insert bits are designed with precision tip geometry so they fit fasteners more precisely, which reduces stripping and cam-out. Manufactured with heavy-duty, cold-forged, high-grade steel, they'll withstand extremely high torque output. Plus, a black oxide finish resists corrosion and increases the life of the bit.