332 Drill Bit Size. Letter sizes are imperial drill bit sizes designated a (smallest) to z (largest). Want to learn more about cnc machining? Drill bits, also called twist drills are available with straight or tapered shanks though the most common drill bits will have straight shanks.
I will answer here in us customary sizes, but the principles are the same with metric.
A drill bit size chart is very convenient, so here you go. Api standards, as established by the american petroleum institute, enable drilling professionals the world over to communicate clearly. Drill long, straight holes with these bits. Q (.332) sized drill bit. Letter sizes are imperial drill bit sizes designated a (smallest) to z (largest). B) how far deep should i predrill? Depending on the type of wood drill bit you use to make the hole, the carriage bolt may slide right into the hole or be very tight. Channels in the bit allows coolant to flow through the tool for more efficient chip evacuation.