These draper hi torq® metric double flexible head ratchet ring spanners are forged from chrome vanadium steel that is hardened, tempered, fully polished and mirror chrome plated for corrosion protection'. '.strtoupper('b')oth ring ends have a 180° flex head and 90 tooth ratchet mechanism, and the 4° movement enables use in tight spaces'. '.strtoupper('t')he 12 point hi torq® delivers maximum leverage by transferring torque to the flats and preventing slipping or damage to the fastener'. '.strtoupper('t')his six piece set contains the full range'. '.strtoupper('f')eatures and benefits bull 90 tooth ratchet mechanism bull ring ends have 180° flex head bull the 4° movement enables use in tight spaces bull forged from chrome vanadium steel that is hardened, tempered, fully polished and mirror chrome plated bull optimal leverage through 12 point hi torq® contents sizes 8 x 9, 10 x 11, 12 x 13, 14 x 15, 16 x 17, 18 x 19mm