1/2" x 14, National Pipe Taper Tap, Carbon Steel, Ideal For Pipe Fittings, Cuts Internal Threads In Piped, Normal Size Of The Tap Is That Of The Pipe Being Fitted, Tapered At A Rate Of 3/4" Per Foot, Use 45/64" Drill Bit, Bulk Pouch.
#12 x 24, National Course Thread, Machine Screw Tap, Carbon Steel, Ideal For Routine Maintenance, Repair Work & For Rethreading Where High Accuracy & Tolerance Thread Is Not Critical, Straight Flutes Are Ground To Provide Rapid Chip Removal For Efficient Threading, Designed For Hand Threading Work In A Variety Of Materials Taps Produce A Class 2B Thread, Use Drill Bit #16 Or 11/64".
7/16" x 14, National Course Thread, Fractional Tap, Carbon Steel, Ideal For Routine Maintenance, Repair Work & For Rethreading Where High Accuracy & Tolerance Thread Is Not Critical, Straight Flutes Are Ground To Provide Rapid Chip Removal For Efficient Threading, Designed For Hand Threading Work In A Variety Of Materials Taps Produce A Class 2B Thread, Use Drill Bit Letter U Or 11/32".
1/2" x 13, National Course Thread, Fractional Tap, Carbon Steel, Ideal For Routine Maintenance, Repair Work & For Rethreading Where High Accuracy & Tolerance Thread Is Not Critical, Straight Flutes Are Ground To Provide Rapid Chip Removal For Efficient Threading, Designed For Hand Threading Work In A Variety Of Materials Taps Produce A Class 2B Thread, Use 27/64" Drill Bit.
1/4" x 18, National Pipe Taper Tap, Carbon Steel, Ideal For Pipe Fittings, Cuts Internal Threads In Piped, Normal Size Of The Tap Is That Of The Pipe Being Fitted, Tapered At A Rate Of 3/4" Per Foot, Use 7/16" Drill Bit.