Black Series 4-in-1 Reversible Lock-On™ Ratchet Ring Spanner

Manufactured from Chrome Vanadium steel, hardened and tempered with a fully polished black chrome finish. 
Lock-On™ features specially machined flutes in the walls of the socket which enable use on up to 85% rounded fasteners.
Innovative ring design allows four different sizes on one spanner.
72-Tooth ratchet rings require only 5º rotation to pick up the next tooth, ideal for applications where space is limited.
Size Coverage: 10 x 13, 17 x 19mm.
Lifetime guarantee*.
Model No. AK63923