Cemented Carbide Tap Series N-CT FC Carbide Taps for Cast Irons Spiral Fluted Taps (for blind hole) Size Class Code Chamfer L ℓ ℓn Ds K ℓk No. of Type Stock (mm) (mm) (mm) (mm) (mm) (mm) flutes M3 × 0.35 P3 TCNR3.0D1 1.5P 46 8 - 4 3.2 6 3 1 △ TCNR3.5H3 3P M3.5 × 0.6 P3 48 11 - 4 3.2 6 3 1 ○ TCNR3.5H1 1.5P Spiral Fluted Taps (for through hole) TCNR4.0I3 3P M4 × 0.7 P3 52 13 - 5 4 7 4 1 ◎ TCNR4.0I1 1.5P TCNR4.0G3 3P M4 × 0.5 P3 52 11 - 5 4 7 4 1 △ TCNR4.0G1 1.5P Spiral Pointed Taps (for through hole) TCNR5.0K3 3P M5 × 0.8 P3 60 16 - 5.5 4.5 7 4 1 ◎ TCNR5.0K1 1.5P TCNR5.0G3 3P M5 × 0.5 P3 52 11 - 5.5 4.5 7 4 1 △ TCNR5.0G1 1.5P TCNR6.0M3 2 Hand Taps 3P TCNR6.0M3F 3 M6 × 1 P3 62 19 - 6 4.5 7 4 ◎ TCNR6.0M1 2 1.5P TCNR6.0M1F 3 TCNR6.0J3 3P Cemented Carbide Taps M6 × 0.75 P3 62 13 - 6 4.5 7 4 2 ○ TCNR6.0J1 1.5P TCNR6.0G3 3P M6 × 0.5 P3 55 11 - 6 4.5 7 4 2 △ TCNR6.0G1 1.5P TCNR7.0M3 3P M7 × 1 P3 65 19 - 6.2 5 8 4 4 ○ Roll Taps TCNR7.0M1 1.5P TCNR7.0J3 3P M7 × 0.75 P3 62 13 - 6.2 5 8 4 4 △ TCNR7.0J1 1.5P TCNR8.0N3 3P P3 ◎ TCNR8.0N1 1.5P Special Thread Taps Simple Inspection Tools M8 × 1.25 70 22 - 6.2 5 8 4 4 TCNS8.0N3 3P P4 △ TCNS8.0N1 1.5P TCNR8.0M3 3P M8 × 1 P3 70 19 - 6.2 5 8 4 4 ○ TCNR8.0M1 1.5P Pipe Taps TCNR8.0J3 3P M8 × 0.75 P3 62 13 - 6.2 5 8 4 4 △ TCNR8.0J1 1.5P TCNR010O3 3P P3 ◎ TCNR010O1 1.5P M10 × 1.5 75 24 - 7 5.5 8 4 4 Thread Mills TCNS010O3 3P P4 △ TCNS010O1 1.5P TCNR010N3 3P P3 ○ TCNR010N1 1.5P M10 × 1.25 75 22 - 7 5.5 8 4 4 Dies TCNS010N3 3P P4 △ TCNS010N1 1.5P TCNR010M3 3P P3 ○ TCNR010M1 1.5P M10 × 1 70 19 - 7 5.5 8 4 4 TCNS010M3 3P Center Drills P4 △ TCNS010M1 1.5P TCNR012P3 3P P3 ◎ TCNR012P1 1.5P M12 × 1.75 82 30 - 8.5 6.5 9 4 4 TCNS012P3 3P P4 ○ Centering Tools TCNS012P1 1.5P TCNR012O3 3P P3 ○ M12 × 1.5 TCNR012O1 1.5P 82 24 - 8.5 6.5 9 4 4 P4 TCNS012O3 3P △ JIS CT-5 ◎=Standard ○=Semi standard △=Made to order 482 For improvement, spec may change without advance notice.