Gauge Block, 12pcs Angle Angle Blocks Measuring Blocks, Cushion Blocks 1/4 To 30 Degree Gauge Milling Machinist Lathe Tools ,Solid

Angle range: +/-20 inch. for machinists and metalworkers; measure angles with maximum precision. Hardness: HRC52-58. Application: For precise angular alignment and measurement for grinder and milling applications. Carrying Case: Hard shell box are easy to carry.