WORN END MILL COMPARISON
WITH LOAD METER & GRAPHING UTILITY

The below comparison shows exactly what the Load Meter is designed to reveal: the performance difference between a sharp tool and a worn one under the same cutting conditions.

Using two otherwise identical end mills, one new and one heavily worn, the Load Meter captured spindle load throughout each pass while the graphing utility made the results easy to compare. The difference is immediate and obvious. The worn tool pulled higher spindle load through nearly the entire cut, giving a clear, measurable picture of increased cutting effort as tool condition declines.

Instead of relying on guesswork, sound, or surface finish alone, the Load Meter gives you a direct view into what the spindle is actually working against. That means better insight into tool wear, easier process comparison, and more confidence when deciding whether a cutter is still doing its job or costing you performance.

Test parameters:

• 1/2" short-shank, 4-flute carbide end mill
• One new tool, one significantly worn tool
• 3/16" steel plate, exact material unknown, but it machined similarly to the mild steel I normally buy
• 2500 RPM
• 0.050" DOC
• 10 IPM
• Full slotting
• Forced mist lubrication

Old End Mill Raw Data | New End Mill Raw Data