- Drive profile size 1: 10 mm
- Drive profile size 2: Not applicable
- Type of drive profile 2: Not applicable
Box spanners and open pipe spanners
This nut driver is a tubular box spanner that slides over a nut and is open at both ends, so a protruding length of thread can pass straight through. That is the difference from a ring spanner: where a ring fouls on a long bolt, the box spanner simply drops down onto the nut.
Drive runs through a cross hole in the tube, where you put a bar or tommy through. That builds real torque without needing room to swing a handle round, which suits narrow enclosures, gaps between profiles and fixings that sit recessed. Versions with a forged open head combine twelve-point and six-point, so they also fit a nut that is only half reachable.
Choose on across-flats size, from the small sizes for electrical and assembly work up past 20 mm for heavier maintenance, and watch the wall thickness while you do. A thin tube reaches into tight counterbores, a thick wall takes more torque.
Other key types sit under pin key and adjustable spanner.
- Drive profile size 1: 13 mm
- Version (socket spanner): Drilled-through
- Type of drive profile 1: Hexagon
- Drive profile size 1: 9 mm
- Drive profile size 2: Not applicable
- Type of drive profile 2: Not applicable
- Drive profile size 1: 13 mm
- Version (socket spanner): Drilled-through
- Type of drive profile 1: Hexagon
- Drive profile size 1: 10 mm
- Type of drive profile 1: Hexagon
- Drive profile size 2: 10 mm
- Drive profile size 1: 10 mm
- Version (socket spanner): Drilled-through
- Type of drive profile 1: Hexagon
- Drive profile size 1: 12 mm
- Drive profile size 2: Not applicable
- Type of drive profile 2: Not applicable
- Drive profile size 1: 8 mm
- Drive profile size 2: Not applicable
- Type of drive profile 2: Not applicable
- Drive profile size 1: 8 mm
- Version (socket spanner): Drilled-through
- Type of drive profile 1: Hexagon
- Drive profile size 1: 17 mm
- Drive profile size 2: 17 mm
- Type of drive profile 2: Hexagon
- Drive profile size 1: 17 mm
- Drive profile size 2: Not applicable
- Type of drive profile 2: Not applicable
- Drive profile size 1: 19 mm
- Type of drive profile 1: Hexagon
- Drive profile size 2: 19 mm
- Drive profile size 1: 14 mm
- Drive profile size 2: Not applicable
- Type of drive profile 2: Not applicable
- Drive profile size 1: 17 mm
- Version (socket spanner): Drilled-through
- Type of drive profile 1: Hexagon
- Drive profile size 1: 17 mm
- Type of drive profile 1: Hexagon
- Drive profile size 2: 17 mm
- Drive profile size 1: 17 mm
- Version (socket spanner): Drilled-through
- Type of drive profile 1: Hexagon
- Drive profile size 1: 24 mm
- Drive profile size 2: 24 mm
- Type of drive profile 2: Hexagon
- Drive profile size 1: 32 mm
- Drive profile size 2: 32 mm
- Type of drive profile 2: Hexagon
- Drive profile size 1: 17 mm
- Drive profile size 2: 17 mm
- Type of drive profile 2: Hexagon
- Drive profile size 1: 13 mm
- Type of drive profile 1: Hexagon
- Drive profile size 2: 13 mm