Drills can be found in standardized drill bit sizes. An extensive drill bit and faucet dimensions chart lists metric and imperial sized drills alongside the required screw tap sizes. You will also find specified specialized drill bits which can generate holes using a non-circular cross-portion.[1] Best for: Monotonous specific holes https://drill-bit30639.thenerdsblog.com/40095480/a-secret-weapon-for-drill-bit-supplier