New extensive and well selected range of drill bits from 10 to 10 mm with titanium coated hss spiral drill bits bronze hard metal rock drill bits and wood spiral drill bits the various drill bits are presented in a sturdy steel case well laid out secure and ready to be selected for use at all times special highgrade titaniumcoated high speed steel hss spiral drill bits bronze hard metal rock drill bits with specially coated chips removal device cv wood spiral drill bits with cen