The Book of Big Secrets

SPI 91-315-2 Adjustable 0 to 60° Angle Block: 3" Long x 1" Wide x 1-11/32" High

Nawwgy Industrial Calibration Rod Metal Outside Micrometer Standard Caliper Calibration Block for Calibrating Micrometers Outside Micrometer Inspection and Calibration Measuring Rod

HOMOBABE 80g Calibration Weight for Digital Scale Reusable Calibration Weight for Accurate Measurement Labs and Industry

Double End Gage Handle, Pin Gage Handle, Aluminum Alloy Pin Gage Holder for Ensuring Accurate Measurements for Different Industries (0.3-1mm)

SPI 98-430-2 Ultra Precision Wavy Parallel Set: 9 Pairs 1/2" to 1-1/2" High

Colton Industrial Tools 10078 | Ultra Precision 1-2-3 Block Set, Set of 2, 23 holes, Socket Cap bolts and hex key included

Accusize Industrial Tools Precision 1-2-3 Blocks 2Pcs/Set, 1 Hole, Steel Hardened, EG02-0406

Fluke 1551A-9 Thermometer Readout