The BlueSpot 171pcs Hex 1/4 3/8 & 1/2 Socket Set is manufactured from chrome vanadium for increased durability. Knurled sockets to provide a secure grip. Includes a selection of popular 1/4 3/8 and 1/2 hex sockets in a range of sizes. Includes sturdy plastic case with metal clips for quick and convenient storage. 30-piece 1/4 Bits – Slotted: 4 5.5 7mm; Philips: PH1 PH2 PH3 Pozi: PZ1 PZ2 PZ3 Hex: 2 3 4 5 6mm Tx Star: T8 T9 T10 T15 T20 T25 T27 T30 Tx Star tamper-proof: TH8 TH9 TH10 TH15 TH20 TH25 TH27 TH30. 10-piece 3/8 Sockets 10 11 12 13 14 15 16 17 18 19mm. 30-piece 30mm bits Slotted: 8 10 12mm Philips: PH3 PH4 Pozi: PZ3 PZ4 Tx Star: T40 T45 T50 T55 T60 T70 Tx Star tamperproof: T40 T45 T50 T55 T60 T70 Hex: 7 8 10 12 14mm. 20-piece 25mm bits in bit holder Tx Star: T5 T6 T7. Tamperproof: T7 T10 T15 T20 T25 T27 T30 T40 T45. Ribe: M5 M6 M7 M8 M9. Spline: SL4 SL5.5 SL7. 18-piece 1/2 Sockets: 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 27 30 32mm. 13-piece 1/4 Sockets: 4 4.5 5 5.5 6 7 8 9 10 11 12 13 14mm. 7-piece 1/4 Deep wall sockets: 4 5 6 7 8 9 10mm. 6-piece 3/8 Sockets: 10 11 12 13 14 15. 5-piece 1/4 E-sockets: E4 E5 E6 E7 E8. 5-piece 3/8 E-sockets: E10 E11 E12 E14 E16 E18. 5-piece 1/2 Deep sockets: 16 17 18 19 22mm. 3-piece 1/2 E-sockets: E20 E24. 2-piece 1/4 Extension bar: 2” 4”. 2-piece 1/2 Extension bar: 5” & 10” (with three way adapter). 2-piece 1/2 Spark plug socket 16mm & 21mm. 1-piece 1/4 Sliding T-bar. 1-piece 1/4 Universal joint. 1-piece 1/4 Coupler. 1-piece 1/4 Spinner handle. 1-piece 1/4 Quick release ratchet handle. 1-piece 3/8” Extension bar: 5”. 1-piece 3/8 Coupler (8mm). 1-piece 3/8 Spark plug socket – 18mm. 1-piece 3/8 Quick release ratchet handle. 1-piece 1/2 Universal joint. 1-piece 1/2 Coupler. 1-piece 1/2 Quick release ratchet handle. 1-piece hex key set: 1 1.5 2 2.5 3 4 5mm.