Forstner-Bit-Set-5-Piece-15-35mm-Faithfull-FAIFORSET5-p-The-Faithfull-5-Piece-Forstner-Bit-Set-used-for-drilling-in-woodworking-in-preference-to-drill-bits-and-flat-bits-whenever-a-very-clean-and-precise-hole-is-required-They-also-enable-woodworkers-to-drill-holes-without-passing-through-the-material-when-a-clean-and-precise-bottom-to-a-hole-is-required-Supplied-in-an-aluminium-storage-case-p-p-Sizes-15-20-25-30-and-35mm-p-p-Shank-Size-8mm-p-Faithfull-FAIFORSET5-Forstner