
3ERAISO
| 3 | E | R | A | ISO | |||
| Insert | Insert Type | Hand | Thread | Thread | Number of Teeth | ||
| Size | of Insert | Pitch | Profi le |
| E — | R — | Single tooth profi le — |
| External thread | Right-hand | No symbol |
| thread | ||
| I — | L — | Multi-tooth profi le — |
| Internal thread | Left-hand | Number of teeth |
thread (cutting edge and symbol) Multi-tooth profi le with two teeth — 2M
d
L1
Partial profi le inserts
| symbol | mm |
| A | 0,5–1,5 |
| AG | 0,5–3,0 |
| G | 1,7–3,0 |
| N | 3,5–5,0 |
| Q | 5,5–6,0 |
Full profi le inserts
| 55 | Partial Profi le 55° |
| 60 | Partial Profi le 60° |
| ISO | ISO Metric 60° |
| TR | ISO Metric 60° |
| UN | ISO Inch/American UN 60° |
| W | Whitworth 55° |
| NPT | American National Pipe Thread 60° |
| RD | Round |
| PG | Steel Conduit |
| APIRD | API Round |
| symbol | d | L1 | symbol | mm |
| 2 | 0.250 | 11 | Actual | |
| 0,5–0,4 | ||||
| TPI | ||||
| 3 | 0.375 | 16 | ||
| 4 | 0.500 | 22 | ||
| 5 | 0.625 | 27 |