Master XL Deep Includes sizes 6mm t+G1275o 21mm.
Sockets are 120mm long and deep broached for extra-deep reach. 
Provides access to recessed areas with extra long bolts, as found on some bumpers, rear lamps, glow plugs and door hinge fittings, including: valve cover bolts (7mm), diesel glow plugs (10mm, 12mm, 17mm), Benz C-Class (W204) rear bumper covers (10mm, 12mm), BMW N54 Twin-turbo valve cover bolts (12mm), BMW E90/92 Lug Nuts (17mm), BMW Spark Plugs (14mm), BMW E90/92 Clutch Bleeder Valve (11mm), Ford 7.3L glow plugs (10mm). Sockets are 3/8" & 1/2" square drive. 
Plus 1/2" to 3/8" & 3/8" to 1/4" drive adapters included in set.