A secondary grind produced an unexpected groove, and though this does not affect our 82-Degree Countersink's functionality whatsoever, this cosmetic flaw does force us to re-classify this product as a blem. Our loss is your gain! Our 82-Degree Countersink Blem is guaranteed to work exactly the same as its non-blem counterpart. Quantity is limited - so don't delay, order today!

A single flute countersink will only make PERFECTLY concentric countersinks - it's the multiple flutes which cause chatter. This is the best woodworking countersink we have ever used. (3/8" shank diameter; 1-1/4" diameter)