Milescraft Counter BIt Set of Four Countersink Counterbore Drill Bits Try Squares It has a groove for

It has a groove for fishhooks and opens out to 138mm when assembled

If you are working with paler timbers (Pine varieties

Hard wearing materials ensure a lifetime of service

Universal for use on every cutterhead on the market

We love this simple but very effective tool for setting jointer knives

Milescraft Counter BIt Set of Four Countersink Counterbore Drill Bits Try Squares It has a groove forSimultaneously countersink or counterbore screw pilot holes In one step you can drill, countersink, and counterbore the perfect sized hole for #6, #8, #10, and #12 screws. Countersink to drive the head of the screw flush with or slightly below the surface. The drill bits are adjustable for different length screws. Features Specially designed steel sleeve countersinks or counterbores pilot hole Adjustable counter sleeve depth with hex key (included)