Calculated Industries Construction Master Pro Series 4065 Math Calculator, 11 Display Rolair AB5PLUS 1 Gal 0.5 HP 90 PSI Lightweight Portable Electric Air Compressor making them rust-resistant

making them rust-resistant

smooth finish

6 CFM @ 90 PSI

Apollo Coupling with Stop

At just over 4 lb it's compact

Calculated Industries Construction Master Pro Series 4065 Math Calculator, 11 Display Rolair AB5PLUS 1 Gal 0.5 HP 90 PSI Lightweight Portable Electric Air Compressor making them rust-resistantThe Construction Master Pro is an award winning advanced feet inch fraction construction math calculator with powerful built in solutions ideal for completing layouts, plans, bids and estimates. Calculate circles, roofs, stairs and more. Works in and converts between feet inches fractions and decimals, including metric. Use it in the field or office to save time, reduce costs, prevent re work and maximize profits.