Measuring and Layout — FAQ
Does DEWALT actually make thickness gauges for materials?
No. DEWALT manufactures tire pressure gauges, not material thickness gauges. The DEWALT A14993 and Low Pressure Pencil Gauge measure air pressure in tires and pneumatic equipment. For wood, metal, or coating thickness, consider brands like Wixey, ARCCAPTAIN, or specialized automotive tools.
What's the difference between a mil and a millimeter?
A mil equals 0.001 inch (25.4 microns), commonly used in coating thickness measurement. A millimeter is 0.03937 inches—roughly 39 times larger. The TCP Global gauge measures in mils for paint films, while metal gauges often show both metric and imperial units.
Can I use a tire pressure gauge to measure material thickness?
Absolutely not. Tire pressure gauges measure air pressure in PSI (pounds per square inch), requiring a sealed air chamber. Material thickness gauges physically contact solid surfaces to measure dimension. These are fundamentally different tools with no interchangeable function.
Which gauge is best for woodworking?
The Wixey Digital Planer Gauge excels for woodworking. It upgrades portable planers with digital accuracy, ensuring consistent board thickness for furniture and cabinetry. Its digital readout eliminates guesswork and provides repeatability within 0.001 inch—critical for quality joinery.
How do I calibrate a digital thickness gauge?
Most digital gauges include calibration standards or reference blocks. Place the gauge on a certified flat surface, enter calibration mode, and adjust to match the known dimension. Annual professional calibration is recommended for commercial applications requiring certification.
Are budget thickness gauges accurate enough for professional work?
Budget gauges like the two-pack metal sheet set provide adequate accuracy for general inspection and sorting tasks. However, they lack the precision and repeatability required for critical aerospace, automotive, or fine woodworking applications where tolerances fall below 0.005 inch.
