| Fit | Character | Typical use |
|---|---|---|
| H7/g6 | Clearance | Sliding/rotating parts, bushings |
| H7/h6 | Locational | Snug, interchangeable, guides |
| H7/f7 | Running | Running shafts with lubrication |
| H7/k6 | Transition | Accurate centring, removable |
| H7/n6 | Transition / light press | Fixed centring |
| H7/p6 | Interference | Permanent, light press |
| H7/s6 | Heavy interference | Shrink fit, gear hubs |
| H8/f7 | Running | Larger bearings, more clearance |
| H11/c11 | Loose clearance | Coarse sheet and welded parts |
Hole-basis system (H = hole). First part = hole, second = shaft. The shaft tolerance sets clearance or interference.