Engine Pro

Need a more accurate way to set up your degree wheel on crankshafts?

This Degree Wheel Adapter uses a machined Delrin insert that fits snugly into the pilot bushing hole, precisely locating the degree wheel. It’s especially helpful when adding keyways, since not all hubs have exact 90° offset keys. It also works great for balancing and vector splitting off an existing hole while making corrections on the mill.

If the dye witness method has let you down, this adapter is a simple, accurate solution.

🔧 GOOD FOR TOOLS TOO

Split-ball dial bore gauges are commonly used to measure small bores like valve guides, but after a lot of use, the anvils can develop flat spots. When that happens, getting consistent and accurate readings becomes much harder.

💡 Simple fix: Have the anvils DLC (Diamond-Like Carbon) coated.

Benefits include:
• Increased durability and longer tool life
• Reduced friction when entering the bore
• Smoother movement for more consistent measurements

A small upgrade that can make a big difference in measurement accuracy and tool longevity.

Have you tried DLC coating on measuring tools in your shop?

Split-ball dial bore gauges are commonly used to measure small bores such as valve guides, but after heavy use, the anvils can develop flat spots. When that happens, getting consistent and accurate readings becomes much harder.