Spiral Fluted Tap Series SU+SP/SU-SP Spiral Fluted Taps for Stainless Steels Spiral Fluted Taps (for blind hole) Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes 1 -8UNC P3 SUMRU16X 2.5P 125 39 - 58 19 15 18 4 5 △ 1 -12UNF P3 SUMRU16S 2.5P 125 39 - 58 19 15 18 4 5 △ For Whitworth Threads Spiral Fluted Taps (for through hole) Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes 3/16W24 P2 SUMQW03M 2.5P 60 13 21 33 5.5 4.5 7 3 3 △ 1/4W20 P2 SUMQW04N 2.5P 62 15 26 33 6 4.5 7 3 3 △ 5/16W18 P2 SUMQW05O 2.5P 70 19 - 36 6.2 5 8 3 4 △ Spiral Pointed Taps (for through hole) 3/8W16 P2 SUMQW06P 2.5P 75 23 - 38 7 5.5 8 3 4 △ 7/16W14 P3 SUMRW07Q 2.5P 82 26 - 42 8.5 6.5 9 3 4 △ 1/2W12 P3 SUMRW08S 2.5P 88 26 - 45 10.5 8 11 3 4 △ 9/16W12 P3 SUMRW09S 2.5P 95 26 - 48 12.5 10 13 3 4 △ Hand Taps 5/8W11 P3 SUMRW10U 2.5P 95 26 - 48 12.5 10 13 3 4 △ 3/4W10 P3 SUMRW12V 2.5P 105 33 - 50 15 12 15 4 5 △ 7/8W9 P3 SUMRW14W 2.5P 115 33 - 55 17 13 16 4 5 △ 1 W8 P3 SUMRW16X 2.5P 125 39 - 58 19 15 18 4 5 △ Cemented Carbide Taps Roll Taps Special Thread Taps Simple Inspection Tools Pipe Taps Thread Mills Dies Center Drills Centering Tools JIS SP-37 ◎=Standard ○=Semi standard △=Made to order 354 For improvement, spec may change without advance notice.