
1. Insert Size 2. Application 3. Hand of Tool
| I (mm) | d | E — External | R | — Right-hand |
| 06 5/32" | I — Internal | L | — Left-hand | |
| 08 3/16" | UE — U-type, External | RL — Right- and | ||
| 11 1/4" | UI — U-type, Internal | Left-hand |
16 3/8" UEI — U-type, External 22 1/2" and Internal 27 5/8"
I B — Peripherally ground & chipformer
d M — Press to size
U-type Regular Type with a chipformer
— No indication regular type
| 16 | E | R | M | 1.50 | ISO | 2M | IC808 | ||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| 5. Pitch | 6. Thread Standard | 7. No. of Teeth |
| (Optional) |
| Full Profile | 60 | — Partial Profile 60º | ||
| (value by number) | 55 | — Partial Profile 55º | 2 teeth — 2M | |
| 0.35-9.0 mm | ISO | — | ISO Metric | 3 teeth — 3M |
| 72-2 | TPI UN | — American UN | ||
| W | — Whitworth | |||
| Partial Profile | BSPT | — British BSPT | ||
| (Range by letter) | RND | — Round DIN 405 | 8. Grade | |
| mm TPI | TR | — Trapeze DIN 103 | ||
| A 0.5-1.5 48-16 | ACME | — | ACME | IC1007 |
| AG 0.5-3.0 48-8 | STACME | — Stub ACME | IC908 | |
| G 1.75-3.0 14-8 | ABUT | — American Buttress | ||
| IC808 | ||||
| N 3.5-5.0 7-5 | UNJ | — | UNJ | |
| Q 5.5-6.0 4.5-4 | — | IC508 | ||
| NPT | NPT | |||
| U 5.5-9.0 4.5-2.75 | API RD | — | API Round | IC250 |
| BUT | — | API Buttress Casing | IC228 | |
| API | — | API | IC50M | |
| H90 | — | H-90 | ||
| EL | — Extreme Line Casing | |||
| MJ | — | ISO 5855 |