Evolution Gun Works Slitting Saw Mandril 3/4in Shank 3.250in Carbon Steel Blued Finish

Evolution Gun Works Slitting Saw Mandril 3/4in Shank 3.250in Carbon Steel Blued Finish. First we use oversize 1144 heat-treated shafting material. We turn the OD and then we drill the socket for the insert. Next all in the same hold we skin the outside and bore the ID so the entire part is concentric.The bore is .500 +.0005; the hat insert is turned to .4998 so the fit is very good. The contact on the hat is out at the outside and the saw does not touch the inside radius of the hat.The saw is not included. Specifications for Evolution Gun Works Slitting Saw Mandril: Manufacturer: Evolution Gun Works Fabric/Material: Steel Color: Blue Condition: New Package Contents: Evolution Gun Works Slitting Saw Mandril Evolution Gun Works 70591: Slitting Saw Mandril 3/4 in Shank 3.250 in Carbon Steel Blued Finish