R-D DIN

Roll Taps for General Purpose

Specification

■ R-D is the forming tap suitable for steel materials.

Recommended Tapping Speeds depending on Materials

Low carbon steelsMedium carbon steelsHigh carbon steelsAlloy steelsStainless steelsAluminum alloy castingsZinc alloy castings
10低炭素鋼2010中炭素鋼2010高炭素鋼2010合金鋼2010ステンレス鋼2010アルミ合金鋳物2010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)

SizeClassCodeChamferLℓnℓsDsKℓkLobeTYPE
(mm)(mm)(mm)(mm)(mm)(mm)(mm)
For Metric Threads
M2×0.4ISO2XRD2.0EBNEBB2P458-322.82.1541
M2.5×0.45ISO2XRD2.5FBNEBB2P50815332.82.1542
M3×0.5ISO2XRD3.0GBNEBB2P56918343.52.7642
M3.5×0.6ISO2XRD3.5HBNEBB2P5611203243642
M4×0.7ISO2XRD4.0IBNEBB2P631321384.53.4642
M5×0.8ISO2XRD5.0KBNEBB2P7014253964.9842
M6×1ISO2XRD6.0MBNEBB2P8015304564.9842
M8×1.25ISO2XRD8.0NBNEBB2P9019354786.2963
M10 × 1.5ISO2XRD010OBNEBB2P100233952.51081183
M12 × 1.75ISO2XRG012PBNEBB2P11026-56971084
M14 × 2ISO2XRG014QBNEBB2P11026-561191284
M16 × 2ISO2XRG016QBNEBB2P11026-561291284
For GThreads
G 1/8-28-RVG0026NEBB2P9019-4675.5884
G 1/4-19-RVG0047NEBB2P10021-511191284
G 3/8-19-RVG0067NEBB2P10021-511291284

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.