Review on Neiko 🔧 11402A Stubby 4-Inch Exchange by Eddie Orrell

Tried using them with a 90* drill bit adapter to remove the rear bolt from the cylinder head on my suburban LS1. Unfortunately, no amount of slow speed or cutting oil could keep the bolt from going a millimeter and dulling it. 3/16" and 1/8" in particular went in a lot, but at this point the 3/16" bit is over and I'm now pulling the heads out to use a real club.