Check the listing for details. XZN Triple Square Spline Bit Socket Set 10-Piece M4 - M18 Premium Cr-V Ste. Condition: New. Listed at 22.30 USD. XZN Triple Square Spline Bit Socket Set, 10-Piece M4 - M18, Premium Cr-V Steel, 1/4 in, 3/8 in, and 1/2 in Drives, with Enhanced Storage Case, Triple Square Socket Set for Hand Use, AutomotiveOne Set Covers All NeedsCrafted from Alloy SteelEfficient OperationComes with a Storage CaseWide Range of ApplicationsVersatile ApplicationsCase Color: Black,Main Materials: CRV6150 (Bits) + CRV 50BV30 (Sockets),Bits Hardness: 50-56 HRC,Sockets Hardness: 38-42 HRC,Item Model Number: 10PCS 10M,Product Configuration: 10PCS Bit Set,Case Material: PE,Net Weight: 1.48 lbs / 0.67 kg,Case Dimensions: 8.27 x 4.41 x 1.5 inch / 210 x 112 x 38 mm Clearly Markings: The triple square sockets set features deeply engraved, wear-resistant lettering that won't fade or peel. The larger.