Electric Drill Accessories 2-13mm Chuck Hand Tightening Tool 1/2-20UNF Thread with Self-Locking Buckle
- 1/2-20UNF thread, easy to mount, suitable for impact drill and &DC electric drill of different power.
- Fine outer sleeve, easy to clamp, greatly increase the output torsion, practical and reliable to use.
- With self‑locking function, quick to use, which is not easy to slip, ensures high working efficiency.
- Concave‑convex surface enables the front and rear sleeves to cooperate effectively and reduces the shaking of the outer sleeve.
- Unique thrust bearing, easy to convert the torsion applied by the handle into a greater clamping force.
