BRISTOL SPLINE L-KEYS AND KITS Our Bristol Spline keys and bits are manufactured from high quality 8650 steel and are heat treated to precise specifications, then black-oxided. If a standard part won’t satisfy your requirement, please contact us for a quotation on custom arm or bit lengths. We stock several standard spline key kits, but can also quote custom kits. All of our products are Made in USA. Contact Bristol Wrench Co. with your specific requirements.
BRISTOL SPLINE SCREWDRIVERS AND REPLACEMENT BITS Bristol Spline Screwdrivers manufactured by Bristol Wrench Co. are the tools of choice for technicians and mechanics in many industries, including avionics, instruments, radios, aircraft maintenance, printing and engraving. Our screwdrivers have replaceable bits, retained by a set-screw in the recess of a precision-machined bushing which is broached to the unique size and shape of the bit. The plastic handle is manufactured with material and method which provides superior performance and durability. The handle is specifically designed with a size and shape proportional to the size of the bit and fastener, allowing the technician to have the necessary feel to properly apply required torque and to conveniently work on a wide range of tasks. This combination of features is unmatched in the tool industry. These are not “one size fits all” drivers. They are, instead, drivers designed to provide exceptional performance. Standard and special length replacement bits are available. Contact Bristol Wrench Co. with your specific requirements.
BRISTOL SPLINE REPLACEMENT BITS Bristol spline replacement bits are available for both Bristol Screwdrivers and Bristol Sockets. They're available in 4 flute and 6 flute based on the size, and in 2",  3", and 5" lengths.

Our keys and bits are manufactured from high quality 8650 steel and are heat treated to precise specifications. We specialize in custom hex keys and bits, so if a standard size won’t satisfy your requirement, please contact us for a quotation on special arm or bit lengths and special finishes.

Hex and Bristol Spline Screwdrivers manufactured by Bristol Wrench Co. are the tools of choice for technicians and mechanics in many industries, including avionics, instruments, radios, aircraft maintenance, printing and engraving. The drivers have replaceable bits, retained by a set-screw in the recess of a precision-machined bushing which is broached to the unique size and shape of the bit. The plastic handle is manufactured with material and method which provides superior performance and durability. The handle is specifically designed with a size and shape proportional to the size of the bit and fastener, allowing the technician to have the necessary “feel” to properly apply required torque and to conveniently work on a wide range of tasks.

This combination of features is unmatched in the tool industry. These are not “one size fits all” drivers. They are, instead, drivers designed to provide exceptional performance in hex and Bristol Spline fastening applications. Please contact us for a quotation on custom arm or bit lengths and special finishes. Standard and special length replacement bits are also available. Contact Bristol Wrench Co. with your specific needs.