SECMU Miller Head-angle Rake Charts
SECMU Milling Machine Vertical Head No. 50 INT fitting - a set of Rake Charts giving angles for: "Spindle upward to right; Spindle downward to left; rack to left; Spindle upward to left, Spindle downward to right and Rack to Right" - and their Instructions for use. The charts appear to apply to all the multi-angle heads fitted to Secmu millers.