These guys live up to the name they are beast's after 3 and half years of r&d and trying to get the right ratio of rpm to torque ratio to stroke dialed in and not wanting to just realese another pen the saber was reakesed it lines packs and shades with no issue with resistance
Weighted perfectly to sink any vibrations these are everyday tools built by artist for artist
The saber is 4.2 stoke