Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk R+V Thread Forming Tap, Coated Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk Lobe Type Stock (for blind hole) Spiral Fluted Taps (mm) (mm) (mm) (mm) (mm) (mm) (mm) G4 RVP41.7DB 2P ○ RVP51.7DP 4P G5 ◎ M1.7 × 0.35 RVP51.7DB 2P 36 6.3 - 24 3 2.5 5 4 2 RVP61.7DP 4P (for through hole) Spiral Fluted Taps G6 △ RVP61.7DB 2P RVP42.0EP 4P G4 RVP42.0EB 2P RVP52.0EP 4P ◎ M2 × 0.4 G5 42 7.2 - 27 3 2.5 5 4 3 (for through hole) Spiral Pointed Taps RVP52.0EB 2P RVP62.0EP 4P G6 △ RVP62.0EB 2P RVP42.3EP 4P G4 Hand Taps RVP42.3EB 2P M2.3 × 0.4 42 7.2 - 27 3 2.5 5 4 3 △ RVP52.3EP 4P G5 RVP52.3EB 2P RVP52.5FP 4P G5 ○ Carbide Taps Cemented RVP52.5FB 2P M2.5 × 0.45 46 8.1 14 29 3 2.5 5 4 4 RVP62.5FP 4P G6 △ RVP62.5FB 2P RVP52.6FP 4P G5 ◎ RVP52.6FB 2P Roll Taps M2.6 × 0.45 46 8.1 14 29 3 2.5 5 4 4 RVP62.6FP 4P G6 ○ RVP62.6FB 2P RVP53.0GP 4P G5 RVP53.0GB 2P RVP63.0GP 4P ◎ Simple Inspection Tools Special Thread Taps G6 M3 × 0.5 RVP63.0GB 2P 46 9 14 26 4 3.2 6 4 4 RVP73.0GP 4P G7 ○ RVP73.0GB 2P G8 RVP83.0GP 4P △ Pipe Taps RVP54.0IP 4P G5 △ RVP54.0IB 2P RVP64.0IP 4P G6 ◎ RVP64.0IB 2P Thread Mills M4 × 0.7 52 11 17 29 5 4 7 4 4 RVP74.0IP 4P G7 ○ RVP74.0IB 2P RVP84.0IP 4P G8 △ RVP84.0IB 2P Dies RVP55.0KP 4P G5 △ RVP55.0KB 2P RVP65.0KP 4P G6 RVP65.0KB 2P M5 × 0.8 60 13 22 33 5.5 4.5 7 4 4 ○ Center Drills RVP75.0KP 4P G7 RVP75.0KB 2P RVP85.0KP 4P G8 △ RVP85.0KB 2P RVP66.0MP 4P Centering Tools G6 RVP66.0MB 2P M6 × 1 62 15 26 33 6 4.5 7 4 4 ○ RVP76.0MP 4P G7 RVP76.0MB 2P Number of oil grooves : Metric thread : M2.6 and smaller=non, M3 and larger=4 JIS For M6 and smaller, external centers of 2 thread chamfer taps are removed. RO-16 ◎=Standard ○=Semi standard △=Made to order For improvement, spec may change without advance notice. 511