1、The hex wrench has a ball head design, which can be used in a narrow space, and can be tilted for flexible operation 2、Made of alloy steel, strong and wear‑resistant after high temperature quenching, and can be used for a long time. 3、Hex wrenches have standard sizes, with large torsion and good toughness, and effortless tightening of screws. 4、Suitable for furniture and home appliance repair, mechanical equipment disassembly and assembly, automobile repair, etc. 5、The kit contains 9 different specifications of hex wrenches, which can meet different maintenance needs. Item Type: Hex Wrench Material: PP plastic, alloy steel Model: 0619 Metric S2 Lengthened Ball Head/9Pcs Hex Wrench Head: Ball head Purpose: Suitable for home installation and maintenance, home furniture installation, mechanical equipment disassembly and assembly, automobile maintenance, home appliance maintenance, etc. Model Ball Head Specifications (MM) Screw for Wrench (MM) L (MM) D (MM) 0619# Metric H1.5 M1.6-M2 78mm / 3.1in 12.5mm / 0.5in H2.5 M3 90mm / 3.5in 18mm / 0.7in H3 M4 99mm / 3.9in 21mm / 0.8in H4 M5 108mm / 4.3in 24mm / 0.9in H5 M6 121mm / 4.8in 27mm / 1.1in H6 M8 134mm / 5.3in 31mm / 1.2in H8 M10 149mm / 5.9in 36mm / 1.4in H10 M12 170mm / 6.7in 40mm / 1.6in 9 x Hex Wrench