Professional tool for commercial or occasional use. Professional socket set for everyday commercial or occasional use. All size ratchets and sockets (1/4" / 3/8" and 1/2"). Manufactured from a high quality chrome vanadium steel for strength and durability. Metric sizes. SET INCLUDES THE FOLLOWING - 1 x 1/4" drive 72 teeth ratchet handle - 1 x 3/8" drive 72 teeth ratchet handle - 1 x 1/2" drive 72 teeth ratchet handle - 2 x 1/4" drive extensions 50mm / 100mm - 1 x 3/8" drive extensions 125mm - 2 x 1/2" drive extension 125mm / 250mm - 3 x universal joints 1/4" / 3/8" and 1/2" drive - 1 x 1/4" drive spinner handle - 2 x couplers 1/4" / 3/8" and 1/2" - 1 x 1/4" drive sliding T Bar - 1 x 3/8" drive 18mm spark plug socket - 2 x 1/2" drive spark plug sockets 16mm and 21mm - 1 x 1/2" drive 3 way adapter - 7 x Allen keys 1.27mm / 1.5mm / 2mm / 2.5mm / 3mm / 4mm and 5mm - 13 x 1/4" drive shallow sockets - 4mm / 4.5mm / 5mm / 5.5mm / 6mm / 7mm / 8mm / 9mm / 10mm / 11mm / 12mm / 13mm and 14mm - 7 x 1/4" drive deep sockets - 4mm / 5mm / 6mm / 7mm / 8mm / 9mm and 10mm - 10 x 3/8" drive shallow sockets - 10mm / 11mm / 12mm / 13mm / 14mm / 15mm / 16mm / 17mm / 18mm and 19mm - 6 x 3/8" drive deep sockets - 10mm / 11mm / 12mm / 13mm / 14mm and 15mm - 17 x 1/2" drive deep sockets - 10mm / 11mm / 12mm / 13mm / 14mm / 15mm / 16mm / 17mm / 18mm / 19mm / 20mm / 21mm / 22mm / 24mm / 27mm /30mm and 32mm - 5 x 1/2" drive deep sockets - 16mm / 17mm / 18mm / 19mm and 22mm - E - Type 1/4" sockets - E4 / E5 / E6 / E7 and E8 - E - Type 3/8" sockets - E10 / E11 / E12 / E14 / E16 and E18 - E - Type 1/2" sockets - E20 / E22 - 1/4" drive Bit Sockets - PHILLIPS 0 / 1 /2 - 1/4" drive Bit Sockets - POZI 0 / 1 /2 - 1/4" drive Bit Sockets - TOR