Curtis Industries DSC Calibration block Curtis industries| 19665 Curtis Industries DSC Calibration block Print Curtis industries| 19665 Curtis Industries DSC Calibration block For distance, sensitivity and refracted angle calibration per BRR/AWS requirements. 1" thick x 4" long with 1" and 3" radius – weighs 4lb. Contains 3/8" deep x 1/32" radius notch and a 1/8" diameter side hole for 45, 60 and 70° probes. Please specify desired measuring units: Imperial or Metric. QXX-5010: Calibration block, DSC type, carbon steel 1018, with wood case and certificate. QXX-5010-1: Calibration block, DSC type, carbon steel 1018, with certificate. QXX-5010A: Calibration block, DSC type, 7075-T6 aluminum, with wood case and certificate. QXX-5012: Calibration block, DSC type, 304 stainless, with wood case and certificate. Case: HC-DSC: Standard hardwood case for DSC blocks. Request for information