This precision turned pilot is made of heat treated 4140 (chrome moly) and finished in black oxide. It is designed to guide your Annular cutter into the right location to keep the barrel diameter concentric with the rifled barrel hole.
The cutter should be ran at slow RPMs (around 200), lubricated constantly, and a pilot used to keep it centered on the barrel properly.
ANNULAR Cutter(Shown in picture) is sold separately below. Carolina Shooters Supply Inc. expressly denies any liability for results that may occur from the proper, or improper, use of this tool. If you are unsure about using it, please do not order.
The product descriptions on the pilot and anular cutter need updating. The inner diameter of the cutter is larger than the standard 1/4" and therefore the .22 pilot doesn't fit common anular cutters. The shank on the pilot is around 5/16“ (guessing, I didn't measure) and it would have been nice to know before ordering as I wasted a good bit of time thinking I could use parts I already had.Al