by Andy Stacy | May 4, 2026 | CYLINDER HEADS
When chamfering valve springs, it’s imperative that you don’t hit the insides of any coils, which could lead to a stress riser and breakage. I insert a trimmed rubber pad to lift the tail away from the next coil and give me some room to work with the...
by Donnie Hurt | Dec 9, 2025 | OTHER SHOP WORK
Chamfering a bolt hole might require an extended reach countersink cutter. Here’s how to quickly make an extension for the more common 1/4″ shank cutters. First, drill a 15/32″ x 1″ deep hole in the end of a 6″ length of 3/8″...
