Countersink Bits
#10 COUNTERSINK TOOL
Tapered drill bits with widened flutes for drilling fast, clean pilot holes.
- Adjustable 4-cutter counterbore cuts and clears chips quicker for fast, smooth countersink or counterbore drilling.
- Attaches and adjusts with 2 hex screws.
- Counterbore attaches to flat on the shank for a more secure fit.
- Adjustable stop collar attaches to counterbore for controlling countersink depth.
- 1/4" hex quick-change shank reduces slipping in standard chucks and is compatible with impact drivers.
#12 COUNTERSINK TOOL
Tapered drill bits with widened flutes for drilling fast, clean pilot holes.
- Adjustable 4-cutter counterbore cuts and clears chips quicker for fast, smooth countersink or counterbore drilling.
- Attaches and adjusts with 2 hex screws.
- Counterbore attaches to flat on the shank for a more secure fit.
- Adjustable stop collar attaches to counterbore for controlling countersink depth.
- 1/4" hex quick-change shank reduces slipping in standard chucks and is compatible with impact drivers.
Irwin #10 – 3/16 Inch Wood Countersink
Replacement tapered drill bits with widened flutes for drilling fast, clean pilot holes. Adjustable 4-cutter counterbore cuts and clears chips quicker for fast, smooth countersink or counterbore drilling. Attaches and adjusts with 2 hex screws. Counterbore attaches to flat on the shank for a more secure fit. Adjustable stop collar attaches to counterbore for controlling countersink depth. 1/4" hex quick change shank reduces slipping in standard chucks and is compatible with impact drivers.
- Adjustable 4-cutter
- Attaches and adjusts with 2 hex screws
- Widened flutes for drilling fast, clean pilot holes
Irwin #14 – 15/64 Inch Wood Countersink
Tapered drill bits with widened flutes for drilling fast, clean pilot holes. Adjustable 4-cutter counterbore cuts and clears chips quicker for fast, smooth countersink or counterbore drilling. Attaches and adjusts with 2 hex screws. Counterbore attaches to flat on the shank for a more secure fit. Adjustable stop collar attaches to counterbore for controlling countersink depth. 1/4 inch hex quick change shank reduces slipping in standard chucks and is compatible with impact drivers.
- Adjustable 4-cutter
- Attaches and adjusts with 2 hex screws
- Widened flutes for drilling fast, clean pilot holes
Irwin #14 – 15/64 Inch Wood Countersink
Replacement tapered drill bits with widened flutes for drilling fast, clean pilot holes. Adjustable 4-cutter counterbore cuts and clears chips quicker for fast, smooth countersink or counterbore drilling. Attaches and adjusts with 2 hex screws. Counterbore attaches to flat on the shank for a more secure fit. Adjustable stop collar attaches to counterbore for controlling countersink depth. 1/4" hex quick change shank reduces slipping in standard chucks and is compatible with impact drivers.
- Adjustable 4-cutter
- Attaches and adjusts with 2 hex screws
- Widened flutes for drilling fast, clean pilot holes
Irwin #4 – 1/8 Inch Wood Countersink
Replacement tapered drill bits with widened flutes for drilling fast, clean pilot holes. Adjustable 4-cutter counterbore cuts and clears chips quicker for fast, smooth countersink or counterbore drilling. Attaches and adjusts with 2 hex screws. Counterbore attaches to flat on the shank for a more secure fit. Adjustable stop collar attaches to counterbore for controlling countersink depth. 1/4" hex quick change shank reduces slipping in standard chucks and is compatible with impact drivers.
- Adjustable 4-cutter
- Attaches and adjusts with 2 hex screws
- Widened flutes for drilling fast, clean pilot holes
Irwin #6 – 9/64 Inch Wood Countersink
Replacement tapered drill bits with widened flutes for drilling fast, clean pilot holes. Adjustable 4-cutter counterbore cuts and clears chips quicker for fast, smooth countersink or counterbore drilling. Attaches and adjusts with 2 hex screws. Counterbore attaches to flat on the shank for a more secure fit. Adjustable stop collar attaches to counterbore for controlling countersink depth. 1/4" hex quick change shank reduces slipping in standard chucks and is compatible with impact drivers.
- Adjustable 4-cutter
- Attaches and adjusts with 2 hex screws
- Widened flutes for drilling fast, clean pilot holes
Irwin #8 – 11/64 In. Wood Countersink
Irwin 3-Piece HSS Black Oxide Metal Countersink Bit Set
High speed steel with black oxide coating for corrosion resistance. 5 flute design reduces vibration for smoother drilling. Precision-ground 82 deg (degree) tip for countersinking into most machinable metals. 1/4" round shank compatible with all handheld and stationary drills. Set includes 1 each: 1/2" Model No. 12411 (SKU 325880), 5/8" Model No. 12412 (SKU 325899), 3/4" Model No. 12413 (SKU 325902).
- Steel
- Corrosion resistance
- Black oxide coating
- 5 flute design reduces vibration
Irwin 3/8 Inch Black OX Countersink
High-speed steel with black oxide coating for corrosion resistance. 5 flute design reduces vibration for smoother drilling. Precision-ground 82 deg (degree) tip for countersinking into most machinable metals. 1/4" round shank compatible with all handheld and stationary drills.
- Steel
- Corrosion resistance
- Black oxide coating
- 5 flute design reduces vibration