Types of Spanner Wrench

The spanner wrench is referred to as the spanner wrench, and its opening width can be adjusted within a certain range. It is a tool used to tighten and loosen nuts and bolts of different specifications.

Inner hexagonal wrench (inner hexagonal) (GB5356-85)--nominal size (size across sides): 2.5~36

Slotted screwdriver (slotted screwdriver) (QB/T 2564.4-2012)--Specification (length of shaft without handle × diameter of shaft): 50×3~350×9

Phillips screwdriver (Phillips screwdriver) (QB/T 2564.4-2012)--Specification (length of rod without handle × diameter of rod): 50×4~400×9

spanner wrench (GB/T 4440-2008)--Specification (length × maximum opening width): 100×13~600×65

Double-ended wrench (double-ended wrench) (GB/T 4388-2008)--Specification (combination of opposite sides): 3.2×4~75×80

Torx wrench (GB/T 4388-2008)--Specification (width across flats): 5.5~36

Socket wrench (with swivel) (GB3390.2-82)--Specification (width across flats): 6.3~63

The inventor of the spanner wrench was the Swedish Johan Petter Johansson (1853-1943), who invented the spanner wrench in 1892.