
Nitride
Cast irons
(m/min) For icon explanation, refer to P.50
■ Suitable for hard and abrasive materials such as cast irons.
Segment:1A
| Size i | Class i | Code | Chamfer | L (inch) | ℓ (inch) | Ds (inch) | K (inch) | ℓk (inch) | No. of flutes | Type |
| For Unified Threads | i | |||||||||
| 1/4-20UNC | GH3 GH5 | Y86001 Y86002 Y86003 | 4P 1.5P 4P | 2.5 | 1 | 0.255 | 0.191 | 0.312 | 4 | 1 |
| Y86004 | 1.5P | |||||||||
| 1/4-28UNF | GH3 | Y86005 Y86006 | 4P 1.5P | 2.5 | 1 | 0.255 | 0.191 | 0.312 | 4 | 1 |
| 5/16-18UNC | GH3 GH5 | Y86007 Y86008 Y86009 | 4P 1.5P 4P | 2.718 | 1.125 | 0.318 | 0.238 | 0.375 | 4 | 2 |
| Y86010 | 1.5P | |||||||||
| 5/16-24UNF | GH3 | Y86011 Y86012 | 4P 1.5P | 2.718 | 1.125 | 0.318 | 0.238 | 0.375 | 4 | 2 |
| 3/8-16UNC | GH3 GH5 | Y86013 Y86014 Y86015 | 4P 1.5P 4P | 2.937 | 1.25 | 0.381 | 0.286 | 0.437 | 4 | 2 |
| Y86016 | 1.5P | |||||||||
| 3/8-24UNF | GH3 | Y86017 Y86018 | 4P 1.5P | 2.937 | 1.25 | 0.381 | 0.286 | 0.437 | 4 | 2 |
| 7/16-14UNC | GH3 GH5 | Y86019 Y86020 Y86021 | 4P 1.5P 4P | 3.156 | 1.437 | 0.323 | 0.242 | 0.406 | 4 | 3 |
| Y86022 | 1.5P | |||||||||
| 7/16-20UNF | GH3 | Y86023 Y86024 | 4P 1.5P | 3.156 | 1.437 | 0.323 | 0.242 | 0.406 | 4 | 3 |