1/4" Hex Drive
Our Insert Bits are heat treated in small lots to assure consistent quality. The quality of our Insert Bits cannot be matched by tools of twice the cost!
Certain bits are available with ACR "ribs" which are tiny grooves on the contact surface of the bit allowing a better "grip". Choose ACR style bits for particularly tough applications.
Note: ACR is a registered trademark of the Phillips Screw Company and is used for reference only. Brown Aviation Tool Supply Co. is not licensed, sponsored, or affiliated in any way with the Phillips Screw Company.