Set of 2 Pc Hardened Steel Precision Ground Angle Plate 45/45/90 & 30/60/90 Degree Dimension: 7 in L x 2-5/8 in W x 7/8 in H *Rough Estimation* Weight: 11 ounce *Rough Estimation* Supplied With Plastic Case When Purchase Material: Hardened Steel Precision Ground Angles 45 Degree Angle Plate Size (inch): 3 x 3 x 4-3/8 30 Degree Angle Plate Size (inch): 4 x 3-15/32 x 2 Four holes 11/32 inch for easy mounting, 9/32 inch thick Plate Thickness: 1/4" Accuracy +/-20 seconds, 0.0001 inch per inch Qty: 1 Set/Order Light Item