HHIP 6 X 5 X 4.5″ Webbed Slotted Angle Plate & 1-2-3 Block Set Matched Pair ~ The angle plate is made of high tensile cast iron properly seasoned against distortion. ~ The angle plate clamping slots are widely used for machining, layout and inspection. ~ This angle plate is accurately machined and ground square and parallel on outside and ends. ~ The 1-2-3 block set is heat treated and case hardened to HRC 55 to 60 and is hardened and precision ground on all 6 sides of each block. ~ These 1-2-3 blocks have an accuracy with squareness on all sides within .0002″ per inch. ~ There are 23 holes on each block that consists of 5 tapped holes that are 3/8″-16 for clamping and 18 untapped holes. ~ The 1-2-3 blocks have a cross drilling design which gives them minimum weight and maximum strength. The angle plate is made of high tensile cast iron properly seasoned against distortion. The angle plate clamping slots are widely used for machining, layout and inspection. The 1-2-3 block set is heat treated and case hardened to HRC 55 to 60 and is hardened and precision ground on all 6 sides of each block. These 1-2-3 blocks have an accuracy with squareness on all sides within .0002″ per inch. There are 23 holes on each block that consists of 5 tapped holes that are 3/8″-16 for clamping and 18 untapped holes.
