Tired of countersinks that slip on the drill bit after one or two holes? After tightening the set screw half a dozen times, the drill bit is usually so scarred up that there is no hope of any further adjustment. These countersinks are designed so that the countersink locks onto the hex shank instead of the drill bit itself - slippage is eliminated!
Drill a pilot hole and countersink or counter-bore for standard screws.
Note: When selecting the right size countersink, certain sizes of pilot hole drills specify the clearance hole size. A clearance hole will allow a screw to pass through it without the threads biting into the material.
See SPECS tab for details.
|Product Group||Bits Blades & Abrasives|
|Sub-Category||Countersink, Std Head|
|PLUG OUTSIDE DIAMETER||1/2"|
|DRILL DIAMETER||9/64 in.|
|BRAND NAME||Make It Snappy|
|SUITABLE FOR||Wood Only|
|SHANK TYPE||HEX, ball detent|
|SHANK DIAMETER||HEX Shank - Ball Detent|