The set includes a manual threader with a ratchet system that greatly facilitates the work and a direction switch. Screwdriver Bits and Drivers. The kit includes 6 interchangeable heads, sizes 1/4 "(6.3mm), 3/8" (10mm), 1/2 "(12.5mm), 3/4" (19mm), 1 "(25mm) 5/4 "(32mm).
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