Precise 12 Piece Angle Block Set

• Made from hardened steel, precision ground.
• 3″ long X 1/4″ thick.
• Angular accuracy .0001″ per inch + arc seconds.
• Shop hardened protective molded case.
• Simple, quick angle set-ups.
• Complete set of 12 blocks: 1/4″,1/2″,1″,2″,3″,4″,5″,10″,15″,20″,25″,30″
• Avoid errors by eliminating calculations.