Router Collets

Out with the wobbly standard router collet and in with the refined, low TIR (Total Indicated Runout) ER collet. I know what you're thinking... What is runout? Have you ever inserted a bit into a drill incorrectly at an angle? That bit would have an incredibly high runout (wobble agressively). However, the runout that is important here is not even visible with the naked eye. If there is a significant runout, then bores will be slightly larger, fine etching grooves will be wider than expected, tiny end mills will break easily, and the router bearings would wear faster. Here are collets specially made for the Porter Cable routers so you will have pin-point accuracy. These collets are rated at 0.0004" TIR Precision Grade. Now, you can have the precision at a low cost that is typically found in expensive spindles.

Porter Cable and Bosch Collets, Nuts and Kits

Collets:

Specifications: Steel (SUJ 2), H.R.C. 45-52, surface Roughness: Ra 0.5um, internal hole by boring machine, and degree of concentricity exceeds the DIN standard. 100% examined. Pictured accessories are for the Porter Cable router.

Benefits: Low noise operation, longer tool life, more accurate cutting and higher kerf fidelity, and compatible with carbide microtools.