The Ejection Door Keyway cutter is our 10 flute GW Armory cutter for plunge milling the .625″ radius between the ejection port cover hinge bosses on the AR-15 upper reciever.
Ejection Door Keyway
10 Fl, 20 HLX | Ø1.250 | .625 IN. SHK | 6.0 IN. OAL | CARBIDE KEYWAY CUTTER
End Type: R.008 Corner Radius
Length of Cut: 0.26
Cutting Diameter: 1.25