(05-29-2018, 12:23 PM)Redman Wrote: Piece of cake. Cut the thread on a lathe or threading machine, move to mill and cut the relief using a cutter with concave radius to match the root diameter of the thread. There could be other ways to skin that cat.
Me -> 45 years in machine shops.
That's how I figured they did it. Especially since you can see the lead in/out near the handle end.
![[Image: AX2n8h9nYldjaETYbkU6zYMgcfnG5F_M4uM2T3M7...76-h902-no]](https://lh3.googleusercontent.com/AX2n8h9nYldjaETYbkU6zYMgcfnG5F_M4uM2T3M7xRETNKG14b2buGKTZTfwP9PTV_PxlxD6tqyis1ohw2Bv6Z9b23S8su3-6gcTFVW_3btw3WRseGxFokMGqdApadCVH06lRAtoceFGsTbzVxO4dSS8NQTm9bvL3MS7epu4jnBNKHXUHdqKnXrZZQnmZS894cZNPnOgI3JYW2aMeITGE9LNoiOBQb9YMaBrbS2JN5p2ZB3RrTvesY_ByA2ks7t3DJcquT5iVX5nJS8qssmv7TkynVzS19PBRX_UncBOWl2nxNcmjCip6UnAr2M-_y7-H-iJy72obzT_oayjY8Kw8Atj_si51i3-XGOtvOXPYhxheh5ymhbEcsJnXP-n43DXZ4xvGQnGo6tGGuki_8O6SAkW-FEu0wAmtu4tRTd8eGlHrnSLopbeZiT-jBoEetO_SSkkjx0pbvjmF1IpymLU9dmcsTv9AV_Sx9VwfzHpmzW572PU57LTOOPzNfvtBIKetVi0Ktt1wejmPN4MPDk53uA00jAlcVORZnS89HatPyfrqX8PICyab2ueWX-tniq9XWwclW2OSANMOSpdMuggCw8CtVQkc2qnd4jL1WAR-SN5h33eU2gVNDFqCYUrF6tKP4WsEyf9jgoN4CTTHFVF-pVzZyMGgRTU=w676-h902-no)
Benny