
■ R-D is the forming tap suitable for steel materials.
| Low carbon steels | Medium carbon steels | High carbon steels | Alloy steels | Stainless steels | Aluminum alloy castings | Zinc alloy castings | ||
| 10低炭素鋼20 | 10中炭素鋼20 | 10高炭素鋼20 | 10合金鋼20 | 10ステンレス鋼20 | 10アルミ合金鋳物20 | 10亜鉛合金鋳物20 | ||
| (m/min) | (m/min) | ( m/ min) | (m/min) | (m/min) | ( m/ min) | (m/min) |
TYPE:1 DIN371 TYPE:2 DIN371
TYPE:3 DIN371 TYPE:4 DIN376/DIN5156
Segment:1J(G=1H)
| Size | Class | Code | Chamfer | L | ℓ | ℓn | ℓs | Ds | K | ℓk | Lobe | TYPE |
| (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | ||||||
| For Metr | ic Threa | ds | ||||||||||
| M2×0.4 | ISO2X | RD2.0EBNEBB | 2P | 45 | 8 | - | 32 | 2.8 | 2.1 | 5 | 4 | 1 |
| M2.5×0.45 | ISO2X | RD2.5FBNEBB | 2P | 50 | 8 | 15 | 33 | 2.8 | 2.1 | 5 | 4 | 2 |
| M3×0.5 | ISO2X | RD3.0GBNEBB | 2P | 56 | 9 | 18 | 34 | 3.5 | 2.7 | 6 | 4 | 2 |
| M3.5×0.6 | ISO2X | RD3.5HBNEBB | 2P | 56 | 11 | 20 | 32 | 4 | 3 | 6 | 4 | 2 |
| M4×0.7 | ISO2X | RD4.0IBNEBB | 2P | 63 | 13 | 21 | 38 | 4.5 | 3.4 | 6 | 4 | 2 |
| M5×0.8 | ISO2X | RD5.0KBNEBB | 2P | 70 | 14 | 25 | 39 | 6 | 4.9 | 8 | 4 | 2 |
| M6×1 | ISO2X | RD6.0MBNEBB | 2P | 80 | 15 | 30 | 45 | 6 | 4.9 | 8 | 4 | 2 |
| M8×1.25 | ISO2X | RD8.0NBNEBB | 2P | 90 | 19 | 35 | 47 | 8 | 6.2 | 9 | 6 | 3 |
| M10 × 1.5 | ISO2X | RD010OBNEBB | 2P | 100 | 23 | 39 | 52.5 | 10 | 8 | 11 | 8 | 3 |
| M12 × 1.75 | ISO2X | RG012PBNEBB | 2P | 110 | 26 | - | 56 | 9 | 7 | 10 | 8 | 4 |
| M14 × 2 | ISO2X | RG014QBNEBB | 2P | 110 | 26 | - | 56 | 11 | 9 | 12 | 8 | 4 |
| M16 × 2 | ISO2X | RG016QBNEBB | 2P | 110 | 26 | - | 56 | 12 | 9 | 12 | 8 | 4 |
| For G | Threads | |||||||||||
| G 1/8-28 | - | RVG0026NEBB | 2P | 90 | 19 | - | 46 | 7 | 5.5 | 8 | 8 | 4 |
| G 1/4-19 | - | RVG0047NEBB | 2P | 100 | 21 | - | 51 | 11 | 9 | 12 | 8 | 4 |
| G 3/8-19 | - | RVG0067NEBB | 2P | 100 | 21 | - | 51 | 12 | 9 | 12 | 8 | 4 |
Number of oil grooves: M2.5 and smaller = non, M3〜M6 = 4, M8 = 3, M10 and larger = 4 For M6 and smaller, external centers of 2P chamfer taps are removed.