Types of wrenches and their corresponding specifications:
1. Internal hexagon wrench (internal hexagon) (GB5356-85), nominal size (across flats): 2.5-36.
2. Flat head screwdriver (flat head screwdriver) (QB/T 2564.4-2012), specification (rod length without connecting handle x rod diameter): 50 × 3~350 × 9.
3. Cross shaped screw driver (cross screwdriver) (QB/T 2564.4-2012), specification (rod length without connecting handle x rod diameter): 50 × 4~400 × 9.
4. Adjustable wrench (GB/T 4440-2008), specification (length x maximum opening width): 100 × 13~600 × 65.
5. Double headed wrench (double headed solid wrench) (GB/T 4388-2008), specification (opposite side size combination): 3.2 × 4~75 × 80.
6. Box wrench (GB/T 4388-2008), specification (width across flats): 5.5-36.
7. Socket wrench (with rotation) (GB3390.2-82), specification (across edge width): 6.3-63.
Manual wrenches, also known as ordinary wrenches, are mainly divided into single end solid wrenches, double end solid wrenches, adjustable wrenches, ring wrenches, multi-purpose wrenches, impact wrenches, socket wrenches, socket drivers, torque wrenches, cross wrenches, ratchet wrenches, hook wrenches, and hexagonal wrenches.
Inner square wrench, manual clutch torque wrench, pipe wrench, T-shaped wrench, L-shaped wrench, three-way wrench, crescent wrench, oil barrel wrench, tire wrench, spark plug wrench, filter wrench, combination wrench, other wrenches, etc. Torque wrenches are divided into sound wrenches, pointer wrenches, and digital display wrenches.
