This BRAND NEW Amp Supply Amplifier Bandswitch Fluted Knob, is the original Fluted Daka-Ware Tuning Knob, with a 2 inch Diameter Skirt, brass insert with set screw, and a brushed Aluminum Inlay. It will fit on a 1/4 inch shaft.I offer two types of this model knob. One has a white pointer line on both the knob and the skirt, and one does not have a white pointer and is normally used when a pointer line is not required as when used with a reduction drive vernier dial. Most of The Amp Supply Amplifiers use this knob with white pointer line for the Band Switch Control.This listing is for the knob with the white pointer line.This knob is made from general purpose Phenolic, with a gloss finish, which is very durable. This high quality knob also has a brass insert which accepts the 1/4 inch shaft, to prevent the set screw from stripping out the threaded hole. This brass insert is required to be able to tighten the set screw so there is no slippage with hard to turn band switches.If you have this type of knob on your gear and it is marked up, chipped and scratched, this knob will make it look great again!These large knobs are used on MANY Amplifiers, Antenna Tuners, and other Amateur Radio Gear including the following brands: Ameritron, Amp Supply, Amp International, Clegg, Dentron, Drake, Hallicrafters, Swan This is only a partial list and this Large Knob was used with Hundreds of radios and electronic gear.If you have a piece of gear with this type knob and only need a replacement inlay, I have them available in another listing.