This 247 pc. Mechanics Tool Set includes ratchets and sockets, a bit driver with specialty and nut bits, combination wrenches, and hex keys to handle most jobs under the hood or elsewhere. A durable case featuring metal latches provides organization and easy storage for travel. The 72 tooth count ratchets are built for efficiency with a quick-release button to easily attach and remove sockets. These tools feature a full polish chrome finish for corrosion resistance.Includes(1) 1/4 in. Drive 6-point sockets: (sae) - 5/32 in, 3/16 in, 7/32 in, 1/4 in, 9/32 in, 5/16 in, 11/32 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in (mm) - 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm | (1) Nut bits: (SAE) - 5/32 in., 3/16 in., 7/32 in., 1/4 in., 9/32 in., 5/16 in., 11/32 in., 3/8 in., 7/16 in.(mm) - 4mm, 5mm, 6mm, 7mm, 8mm, 10mm | (1) Specialty bits driver / adapter: 28 hex keys, 44 specialty bits, 1 bit driver | (1) Ratchets: 1/4 in., 3/8 in. & 1/2 in. drive pear head ratchet | (1) 1/4 in. Drive 6-point deep sockets: (sae) - 5/32 in, 3/16 in, 1/4 in, 9/32 in, 5/16 in, 11/32 in, 3/8 in, 7/16 in, 1/2 in (mm) - 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm | (1) 3/8 in. Drive 6-point sockets: (sae) - 1/4 in, 5/16 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in, 13/16 in, 7/8 in (mm) - 10mm, 11mm, 12mm,13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 21mm | (1) 3/8 in. Drive 6-point deep sockets: (sae) - 1/4 in, 5/16 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in, 13/16 in, 7/8 in (mm) - 10mm, 11mm, 12mm,13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 21mm | (1) 3/8 in. Drive bit sockets: hex (sae) - 5/32 in, 3/16 in,1/4 in, 5/16 in hex (mm) - 4mm, 5mm, 6mm, 7mm, 8mm torx - # 10, 15, 20, 25, 27, 30, 40, 45 | (1) 1/2 in. Drive 6-point sockets: (sae) - 7/16 in, 1/2 in, 9/16 in, 5/8 in, 11/16 in, 3/4 in, 13/16 in, 7/8 in, 15/16 in, 1 in (mm) – 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 21mm, 22mm, 24mm | (1) 1/2 in. Drive 6-point deep sockets: (sae) - 11/16 in, 3/4 in, 13/16 in, 7/8 in, 15/16 in (mm.) - 17mm, 18mm, 19mm, 21mm, 22mm | (1) Combination wrenches: (SAE) - 11/32 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in (mm) - 10mm, 11mm, 13mm, 14mm, 15mm, 16mm | (1) Accessories: 1/4 in. Drive 3 in. & 6 in. extension bars, 1/4 in. drive female to 3/8 in. drive male adapter 3/8 in. drive 3 in. & 6 in. extension bars | (1) 3/8 in. drive 5/8 in., 3/4 in. & 13/16 in. spark plug sockets 3/8 in. drive female to 1/4 in. drive male adapter 1/2 in. drive 5 in. extension bars, 1/2 in. drive female to 3/8 in. drive male adapterFeatures Includes 72 tooth count ratchets which allow for a 5 degree arc swing for maneuverability in restricted areas Durable case with metal latches provides protection and storage for your tools Full polish chrome for corrosion resistance Vinyl, anti-slip driver handle provides maximum comfort Prop 65No Drive Size: 1/4 in Length: 22.3 in Width: 17 in Height: 5 in Weight: 35.26 lbs Socket Types: 6-point, deep, bit sockets, spark plug sockets Socket Sizes (SAE): 5/32 in to 1 in Socket Sizes (Metric): 4 mm to 24 mm Wrench Sizes (SAE): 11/32 in to 5/8 in Wrench Sizes (Metric): 10 mm to 16 mm Torque Ratchets: 72 tooth, 5 arc swing Ratchet Features: Quick-release button Extension Bars Lengths: 1/4 in drive 3 in, 6 in; 3/8 in drive 3 in, 6 in; 1/2 in drive 5 in Adapters: 1/4 in drive female to 3/8 in male; 3/8 in drive female to 1/4 in male; 1/2 in drive female to 3/8 in male Material Finish: Full polish chrome Handle Material: Vinyl, anti-slip Impact or Standard: Standard Etched or Stamped: Yes Unit of Measure: SAE & Metric Country of Origin: Taiwan