Durable Screwdriver Bits with S2 SteelThis torque screwdriver set crafted from high-strength S2 steelresistant to wear, twisting and stripping. Perfect for maintenance, tools, bike repairing and mounting, electronics, or precision control panels etc tight space.
Easy to preset vailue: Unlock the adjusting wheel by pulling it down and rotating the handle to the desired torque value, and locks by pulling the wheel up to finish torque value.