Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk N-CT LA Carbide Taps for Light Alloys Size Class Code Chamfer L ℓ ℓn Ds K ℓk No. of Type Stock (for blind hole) Spiral Fluted Taps (mm) (mm) (mm) (mm) (mm) (mm) flutes TCNR5.0K3A 3P M5 × 0.8 P3 60 16 - 5.5 4.5 7 3 1 ○ TCNR5.0K1A 1.5P TCNR5.0G3A 3P M5 × 0.5 P3 52 11 - 5.5 4.5 7 3 1 △ (for through hole) Spiral Fluted Taps TCNR5.0G1A 1.5P TCNR6.0M3A 3P M6 × 1 P3 62 19 - 6 4.5 7 3 2 ○ TCNR6.0M1A 1.5P TCNR6.0J3A 3P M6 × 0.75 P3 62 13 - 6 4.5 7 3 2 △ TCNR6.0J1A 1.5P (for through hole) Spiral Pointed Taps TCNR6.0G3A 3P M6 × 0.5 P3 55 11 - 6 4.5 7 3 2 △ TCNR6.0G1A 1.5P TCNR7.0M3A 3P M7 × 1 P3 65 19 - 6.2 5 8 3 3 △ TCNR7.0M1A 1.5P TCNR7.0J3A 3P Hand Taps M7 × 0.75 P3 62 13 - 6.2 5 8 3 3 △ TCNR7.0J1A 1.5P TCNR8.0N3A 3P M8 × 1.25 P3 70 22 - 6.2 5 8 3 3 ○ TCNR8.0N1A 1.5P TCNR8.0M3A 3P Carbide Taps Cemented M8 × 1 P3 70 19 - 6.2 5 8 3 3 ○ TCNR8.0M1A 1.5P TCNR8.0J3A 3P M8 × 0.75 P3 62 13 - 6.2 5 8 3 3 △ TCNR8.0J1A 1.5P TCNR010O3A 3P Roll Taps M10 × 1.5 P3 75 24 - 7 5.5 8 3 3 △ TCNR010O1A 1.5P TCNR010N3A 3P P3 ○ TCNR010N1A 1.5P M10 × 1.25 75 22 - 7 5.5 8 3 3 TCNS010N3A 3P P4 △ Simple Inspection Tools Special Thread Taps TCNS010N1A 1.5P TCNR010M3A 3P M10 × 1 P3 70 19 - 7 5.5 8 3 3 △ TCNR010M1A 1.5P TCNR012P3A 3P M12 × 1.75 P3 82 30 - 8.5 6.5 9 3 3 △ Pipe Taps TCNR012P1A 1.5P TCNR012O3A 3P P3 TCNR012O1A 1.5P M12 × 1.5 82 24 - 8.5 6.5 9 3 3 △ TCNS012O3A 3P P4 TCNS012O1A 1.5P Thread Mills TCNR012N3A 3P P3 ○ TCNR012N1A 1.5P M12 × 1.25 80 22 - 8.5 6.5 9 3 3 TCNS012N3A 3P P4 △ TCNS012N1A 1.5P Dies TCNR012M3A 3P M12 × 1 P3 70 19 - 8.5 6.5 9 3 3 △ TCNR012M1A 1.5P TCNR014Q3A 3P P3 TCNR014Q1A 1.5P M14 × 2 88 30 - 10.5 8 11 4 3 △ Center Drills TCNS014Q3A 3P P4 TCNS014Q1A 1.5P TCNR014O3A 3P P3 TCNR014O1A 1.5P M14 × 1.5 88 24 - 10.5 8 11 4 3 △ TCNS014O3A 3P Centering Tools P4 TCNS014O1A 1.5P TCNS016Q3A 3P M16 × 2 P4 95 30 - 12.5 10 13 4 3 △ TCNS016Q1A 1.5P JIS ◎=Standard ○=Semi standard △=Made to order CT-2 For improvement, spec may change without advance notice. 479