12 Hole General Purpose Eddy Current Bolt Hole Standard

Block Sizes: 0.25" thick x 2.5" x 6.0" |
Holes: 3/16",7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8" and 3/4" diameter |
Surface Notches: Qty 3 @ 0.008", 0.020" and 0.040" deep x 1.0" long |
Notch Width (All): 0.004" (± .001) |
Hole Notch Configurations: (-0) 0.030" x 0.030" (45°) corner notch @ 0.004" wide in each hole (Qty 12) (-1) 0.020" full-bore (thru) notch @ 0.004" wide in each hole - (Qty 12) (-2) Full-bore (thru) notch @ 0.020" deep x 0.004" wide and (1) 0.030" x 0.030" (45°) corner notch @ 0.004" in each hole, 180° apart (Qty 24) (-3) Mid-bore notch @ 0.030" deep x 0.004" wide x 0.060" long in each hole - (Qty 12) For center bore notches please call us for pricing |

Marking on the face of block: Hole diameters, part numbers and surface notch depth |
Marking on edge of block: Serial number and alloy |
Note: Bolt hole standard will be similar, but not identical to the item pictured above
Documentation: All calibration blocks and reference standards come complete with a certification report stating conformance to any applicable specification. Calibrated to standards that are traceable to NIST. A Material Test Report for the specific heat / lot number of raw material used is also included.
Ordering Note: Please specify material, hole notch type and size when requesting a quotation