Potts drill grinding jig • Potts Drill Grinding Jig • Potts Saw Table Attachment Add to Basket Worden Mk3 - 4-Facet Drill Grinding Jig £40. Mar 19, 2023 · This page describes shop built drill sharpening jigs, NOT hand held sharpening on a bench grinder. Basically a block like clamp that held the drill at the right angle for stoning the facets. Jan 5, 2016 · (Potts drill grinding jig) « Reply #16 on: January 18, 2016, 10:02:05 PM » Drill platform is allmost done now, just the lip rest to do, but that will not be done until it is finished. The Potts drill grinding jig was ( I am fairly sure ) described in the Model Engineer magazine along with a simple drilling spindle for a lathe cross slide which also bore the name Potts. For not quite so small, there is the Potts grinding device, a nice little unit that appeared in Model Engineer years ago. Aug 5, 2023 · Guy Lautard had a fixture (in one of the MBRs) for very small drills that would be use with a stone vs grinding. 4 Facet Drill from Ø3/32" to Ø1/2". This is the only way to sharpen drills as no other device adjusts the backoff angle correctly for the size of drill. I have had one of the jigs that swing the drill on the edge of the wheel and they are useless IMO. exzhxrayixqrxodpwasarjirajppppvlxqdlthmlcrvxqszkfbirjv