PROTO J61404 – 4″ Long 3/8″ Sq. M 1/4″ Hex Shank Extension Bit

EXTENSION 1/4 HEX 3/8 SQ 2-02A

Features and Benefits

• This Extension Bit has an overall length of 4″
• 1/4″ hex shank
• 3/8″ male square
• Pin socket retention
• One-piece construction ensures concentricity
• Special heat treat ensures long life
• Precision machined tips for proper fastener engagement