View Single Post
Old April 25, 2013, 03:54 PM   #19
James K
Member In Memoriam
 
Join Date: March 17, 1999
Posts: 24,383
The checkering pattern on the Arisaka safety was machined, apparently in a two-pass operation. The lines on the side would have been put on by forcing the part through a die. That was done while the part was "in the white" and soft; it would be hardened and rust blued later.

All that work was eliminated in the late-war rifles, where the weld that joined the knob and the spindle was left as it was and the safety knob was not checkered.

Jim
James K is offline  
 
Page generated in 0.02230 seconds with 8 queries