MHRZ

Roll Taps for Carbon Steels of Middle Hardness

Specification

■ Stable tapping in thermal refined steels (~35HRC).

Coating 2D

Recommended Tapping Speed depending on Materials

High carbon steels Alloy steels Thermal re ned steels

10〜30 10〜30 10〜20

~35HRC For icon explanation, refer to P.50

TYPE:1 TYPE:2

Segment:1J

SizeClassCodeChamferL (mm)ℓ (mm)ℓn (mm)ℓs (mm)Ds (mm)K (mm)ℓk (mm)LobeTypeStock
M6×1G8RY6.0M8OCTP RY6.0M8OCTB4P 2P6211263364.5751
M8×1.25G8RY8.0N8OCTP RY8.0N8OCTB4P 2P7012-366.25862
M10×1.5G8RY010O8OCTP RY010O8OCTB4P 2P7513-3875.5882
M10×1.25G8RY010N8OCTP RY010N8OCTB4P 2P7513-3875.5882
M12×1.5G8RY012O8OCTP RY012O8OCTB4P 2P8215-428.56.5982
M12×1.25G8RY012N8OCTP RY012N8OCTB4P 2P8215-428.56.5982
M14×1.5G9RY014O9OCTP RY014O9OCTB4P 2P8818-4510.581182

Number of oil grooves : M6=5, M8=6, M10 and larger=8 For M6 and smaller, external centers of 2 thread chamfer taps are removed.