The blade adjusts to do the same job as several normal counterbores

Center the counterbore to cut close-fitting recesses for a range of screw-head diameters

The go-to for standard screw-head diameters and thread sizes

Create counterbored holes for screws of different diameters

Grab whatever counterbore-pilot combo you need to match the diameters of your screw head and pilot hole

A single bit drills and creates a flat surface for the head of a socket head cap screw

Pair with inserts to create flat-bottom holes

Align counterbores in the center of drilled holes

Cut deep openings for tall screw heads

Mix and match counterbores and drill bits to match a range of screw sizes

Drill and counterbore holes of different depths without changing tools

Quickly create counterbored pilot holes for a range of screw sizes

Create a counterbored pilot hole without switching to a drill bit

Thin cutting edges reduce surface contact to make smooth cuts at high speeds

Create contoured profiles in holes for leak-proof hydraulic connections

Cut oversized openings for a range of screw-head diameters to prevent binding

Cut an opening a bit wider than your screw head to prevent binding

Pop into a hand-driven tool to drill and counterbore a hole in a single step

If the hole is obstructed, counterbore from the reverse side instead