Light duty transmission

Bi-directional rotation

Lengthy shaft

Tapered shaft

By clamps

By bolt and nut

By key or screws

By locking device

Pillar file

Flexible file

Warding file

Swiss pattern file

Provide increased bearing surface

Prevent the damage to the surface

Distribute even pressure on working surface

Prevent bolt or nut from loosening under vibration

Used for tapered fittings

Can be withdrawn easily

Provides unidirectional torque

Good in high speed application