Can be used with a regular 5/16" nut driver or a 5/16" socket wrench designed for 6-12 points.
The drill bit is made of alloy steel and electroplated with black zinc, which is durable. Has excellent anti-rust properties, ensuring long-term trouble-free use
The drill bit is fully hardened and the bits are interchangeable. All drill bits are precision ground and made specifically for 9", 10k and 10L south bend lathe applications
If you're trying to remove ball crank handles from large slotted machine screws or slotted retaining nuts on a south-bend lathe, this new Drag Chain Drill and Wrench Bit Combo Kit provides the right tool