Does the extra amperage and hp make that big of a difference?
It really varies by the manufacturer.
I have a sheet metal nibbler made by fein, with a cutting head that was likely made by Trumpf.
Other nibblers use the same cutting head, but different motors.
Most of the other sheet metal nibblers used to have motors with a listed amperage twice what the Fein had.
I have literally cut sheet metal twice the spec’d maximum with the fein.
The general impression I got, is that quality machining, quality bearings, and quality motor design, can increase the actual power and efficiency of electrical motors beyond the simple amp ratings.
The Dewalt DW625 router for instance was originally designed by a German brand called Elu.
Black & Decker bought Elu’s portable power tool division and started manufacturing the routers under the Black & Decker brand name, and the Dewalt brand name.
B&D also continuously tweaked the motor design for decades.
There was a router test in one woodworking magazine a decade or two ago, and various routers were hooked up and actually torque tested.
The Dewalt, despite being only rated at 12 amps came out better than some of the routers rated at 15 amps, which included a Bosch router.
www.harborfreight.com
www.precisionbits.com
