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 shank for a more secure fit

Adjustable stop collar attaches to counterbore for controlling countersink depth

1/4" quick change shank reduces slipping in standard chucks and is compatible with impact drivers

Set includes 1 each: #6 Model No

1882787 (SKU 301654), #8 Model No

1882788 (SKU 301659), 0 Model No

1882789 (SKU 301661), and 1 stop collar