Forstner Bits are the most practical way of precision drilling of timber without tear-out on either surface. Blind, flat-based holes and large angular hole boring are practically achieved with these quality boring bits. Drilling speed and heat build-up are important considerations that can blunton cutting edges and reduce the service life of the drill. Titanium Nitride chemical/heat treatment of the bits provide an impervious-to-heat cutting edge, substantially increasing the service life and allowing faster drilling of harder woods. Provided in practical presentation box sets of (10) & (7) these are a welcome addition to any woodworkers workshop tool-set.