Manual mill (Sharp)

This is the wiki page dedicated to the Sharp manual mills. The scope should be consistent with Manual lathe (Logan).

The articles that should be referenced are:
 * Cutter types
 * Tramming head
 * Cleaning
 * Squaring rough stock
 * Boring head
 * Broach
 * Sine Bar
 * Rotary table
 * Turntable
 * 90 Degree mill head