This set contains everything in the Master Set #5575. The new customizable set case has same outside dimensions as the Master Set, but the inside is more modular/customizable. Contents: 68 screwdriver bits, 2 extensions, 2 spinners, screwdriver handle, dipped mini ratchet. Includes SAE & MM ball allen bits.
Includes Robertson Square Head and JIS bits. Bits and tools are interchangeable allowing for hundreds of combinations. Made, hand assembled & inspected in Durham, CT from USA materials. Precision milled to tight tolerances with flat edges, sharp corners & no burrs for snug screw fit.Machined from USA steel & heat treated with a black oxide rust inhibitor finish. Bits are engineered to bend/break BEFORE damaging the screw they fit. Each bit has ears / ring stops with ball detent to hold the bit securely in our tools. Bits have knurled ends for finger tightening & are stamped with the part number. Non-magnetic for use on electronics & PC boards. Chapman manufactured tools are guaranteed to be as represented and free of defects caused by either defective materials or faulty workmanship. This GUARANTEE does not cover products that are improperly used, abused, or altered.