Drill Plug NC/NF Hand Tap Set Number of Pieces 36 Tap Type Plug Hand Drill Bit Material High Speed Steel Drill Bit Finish Bright (Uncoated) Drill Bit Dia Included #15 #16 #21 #25 #29 #3 #33 #36 #7 25/64 in 27/64 in 39/64 in 5/16 in F I Q U Measurement System Fractional Inch Impact Rated No Smallest Drill Bit Dia #36