Sure, your gagillion-volt cordless uber-hammer-driver can make a lot of torque, but this “old school” method of freeing stuck fasteners really works.
When you strike the top of the driver with a hammer, you not only drive the bit into the fastener, but also turn it as the wrench converts some of that downward force into rotational force — giving you the best possible chance of freeing the fastener without camming it out.
You don’t see a lot of these around anymore, but we’ve got one around the shop, and it’s saved our asses a few times. Ours doesn’t have the nice hand shield around it, so you’ve gotta be careful with your fingers. This looks way nicer.
Street pricing starts at $16.