Fisch chrome vanadium Imperial 29-piece brad point drill bit set is great for normal drilling operations in soft and hard wood using cordless drills or drill press machines. Optimal drilling speeds vary from 2,000 to 3,000 RPM. This 29-piece set is the perfect place to start when you need a quality drill set that will get the job done and give you years of service. This handy set includes common Imperial (Inch/fractions) sizes from 1/16 in. to in 1/64 in. increments. The drill bits have full diameter shanks on bits that are 3/8 Dia and smaller. The set is housed in a quality plastic stand case that protects your drills and puts them at arms reach when it is time to get to work.