Spanners: These are used to tighten and loosen nuts and bolts. These are made according to standard nut and bolt sizes and in vanadium steels. The following types of spanner are used :

Open-ended Spanners

These types of spanners are open from both side and used to tighten nut and bolts where low torque is required.

Ring Spanners

These are closed at both ends as they have full circular ring at ends. They do not slip and cause damage.

Combination Spanners

These are open at one end and close at other end.

Torque Wrench

These are used in special cases, where specified amount of torque is required. They are used to tighten important nuts and bolts.

Box Spanners

These may be used to tighten nuts on drums of wheels. Sometimes they are also referred as wheel nut spanners. Figure shows different types of spanners used in motorcycle servicing and repairs.

(a)                                                     (b)

(c)                                                 (d)

Figure : (a) Open End Spanners; (b) Ring Spanners; (c) Combination Spanners; and (d) Torque Wrench