- 12-piece set includes T-10, T-15, T-20, T-25, T-27, T-30, T-40, T-45, T-47, T-50, T-55 & T-60 bits.
- T-10 through T-30 are 1/4 In. drive, T-40 through T-55 are 3/8 In. drive & T-60 is 1/2 In. drive.
- 1 piece bits are special heat treated alloy steel for strength.