기능

• Since a special nylon resin is embedded in the tip of the bit, the hexagonal screw can be held at the tip of the bit and can be worked without dropping.
• Pro-guard processing used for surface treatment has more than five times the corrosion resistance of general black dyeing.
• The steel is made of a protenium-alloy steel, which is more than 20% stronger than typical steel like vanadium steel.
• For tightening and loosening hexagon socket bolts.