M4 x 1-7/8L Hex Bit -

M4 x 1-7/8L Hex Bit -

Designed to fit the 4mm Hex Recess in Joint Connector Bolt Wood (JCBW) screws or any 4mm Hex Recess.

Most bolts are designed to be tightened by rotating the hex nut on the bolt. Hex socket head screws are specifically designed by rotating the screw through the Hex recess. The tightening process transfers the torque through the bit to the head and high stress levels can be achieved. The hex recess size and depth must be the proper fit in the screw heads recess are critical to making sure the hex driver bit or hex keys will fit snuggly in the recess. The proper fit is so the high torque values can be achieved and not damaging or rounding the recess or the driver bit or hex hey.

• Made from S2 modified shock resistant steel for professional performance and durability.
• Proprietary precision CNC machined tips for excellent fit in fastener recess.
• Precision controlled heat treatment for extreme durability and wear protection.