Table of Contents

TypeHelix AngleCutting LengthWorkpiece Hardness HRcNo. of FlutesDiameter RangePage
ERF-A/E-3,4,630º, 38º2D3-64-25Fine pitch steel alloys104
ECR-T-M20º2D46-20105
EBRF-T20º2D3,46-20105
EFF-S0º0.05D41-20106
ETR-A230º1D22-10106
EC-A230º1D22-20107
EC-A-230º2D22-20107
EC-A230º1-3D21-20108
ECC-A-230º2-3.5D22-20Reinforced108
EC-A230º3-10D23-20109
ECS/ECCS-E-338º1-1.5D32-20109
EC-A3/E330º, 38º1-3D30.5-20110
EC-A3/E330º, 38º1-4D32-20110
EC-B345º1-2D31.5-20111
EC-E-338º1-2.5D31-20111
ECC-E-338º2-3.5D32-20Reinforced112
ECU-E-338º2D32.8-19.7Undersized for keyholes112
ECU-E-3-R38º1.25D33.8-11.7Undersized for keyholes with corne radiir 113
EC-B345º1.5D33-20113
EC-B-3 EC-B-3R45º 45º2-3.5D 2D3 32-20 6-20Corner radii114 114