Special Thread Taps / Simple Inspection Tools
CPR-T Check Pins for Bored Holes in thread form tapping (Taper Type)
L ℓ d1 d2 ℓ1 ℓ2 Ds K ℓk
Spiral Pointed Taps Spiral Fluted Taps Spiral Fluted Taps
(for blind hole)


Size Code (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm) (mm)
Type Stock
5/16-18UNC CPRTU05O 90 19.4 7.23 7.38 4.7 14.7 8 6 9 2 ○
5/16-24UNF CPRTU05M 90 19.4 7.42 7.53 4.7 14.7 8 6 9 2 ○
3/8-16UNC CPRTU06P 100 23.4 8.72 8.89 6.7 16.7 10 8 11 2 ○

(for through hole)


3/8-24UNF CPRTU06M 100 23.4 8.99 9.10 6.7 16.7 10 8 11 2
7/16-14UNC CPRTU07Q 110 27.4 10.20 10.40 7.7 19.7 12 9 12 2 ○
7/16-20UNF CPRTU07N 110 27.4 10.48 10.62 7.7 19.7 12 9 12 2 ○
1/2-13UNC CPRTU08R 110 27.4 11.70 11.92 7.7 19.7 12 9 12 2 ○
1/2-20UNF CPRTU08N 110 27.4 12.06 12.20 7.7 19.7 12 9 12 2 ○
(for through hole)
Hand Taps
Cemented
Carbide Taps Roll Taps
Special Thread Taps
Pipe Taps Simple Inspection Tools Thread Mills
Dies
Center Drills
Centering Tools


JIS
ST-21 ◎=Standard ○=Semi standard △=Made to order
544 For improvement, spec may change without advance notice.