The open loop has 6 points. The key is used with a 1/2” shank. torque wrench or screwdriver. Thanks to the slot, you can also reach difficult places.
The set includes:
- 1/2” slotted head 20-21-22-23-24-25-26-27-28-30-32 mm
- 1/2” cardan shank 385 mm
- 1/2” extension arm 125 mm