Precise 12 Piece Angle Block Sets

• Made from hardened steel, precision ground.
• 3" long X 1/4" thick.
• Angular accuracy .0001" per inch + arc seconds.
• Shop hardend 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.