![]() ![]() They're heat treated to specific tolerances and then finished with a rust inhibitor black oxide coating. We precision mill our screwdriver bits on modern equipment that hold tight critical tolerances and produce screwdriver bits with sharp corners, flat ends and no burrs to fit straight and snug into fastener heads. ![]() We've added more tools and different types of bits since our inception, but the basic assemblies are unchanged. Many people say that they "don't make things like they used to." Here at Chapman, our famous midget ratchet and screwdriver bits are essentially unchanged since 1936. Your support of Chapman MFG in turn supports all the American workers that we rely on! ![]() We support American made machinery tool and die makers, fabricators, metal finishers, machine part manufacturers and other local service providers. Chapman tools are made in Durham, CT from USA materials. ![]()
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