Pro-Tech Long Arm Ball Point Hex Key 8 pieces Set RST-167 is made of Chrome Vanadium Steel material with Chrome Plated Surface.
- Standard: DIN911.
- Hardness: HRC 48-53.
- Socket Sizes: 1.27mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm.