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![Calculator, construction master 5, pro desk model Calculator, construction master 5, pro desk model](https://sourceware.spillersusa.com/lowres/detail/CAL44080.jpg)
Calculator, construction master 5, pro desk model
Item No. CAL44080
The Construction Master Pro Trig - Desktop provides construction professionals with complete trig functions to help them quickly and easily solve complex construction-math problems. It saves time, reduces costs and prevents re-work. You can effortlessly work in and convert between feet-inch-fractions and metric units. Instantly calculate complex construction challenges for stair layouts, roofs, framing and much more. Full trig functions with sine, cosine, tangent, arcsine, arccosine and arctangent. Construction Calculations Work in and convert between any building dimension, including Metric Trig Function Find Weight per Volume Built-in Right-Angle solutions Complete Stair Layouts Roof, Rafter and Framing solutions Circular Arcs, Circumference, Segments and More Stairs - Set Riser Height and solve for Stairwell Opening Studs - Find number On-center for an entered Length Compound Miter Cuts Arched Rake-Walls Equal sided Polygons The Construction Master Pro Trig - Desktop is perfect for completing layouts, bid and estimates. No office should be without it. It will save you time and money. For Contractors, Architects, Builders, Engineers, Project Managers, Estimators, Draftspersons
![Calculator, ultra measure master Calculator, ultra measure master](https://sourceware.spillersusa.com/lowres/detail/CAL8025.jpg)
Calculator, ultra measure master
Item No. CAL8025
The Ultra Measure Master is a complete and easy-to-use U.S. Standard to Metric conversion calculator for engineers, architects, construction pros, scientists and students. Convert more than 60 U.S and Metric (si) units - over 400 conversion combinations with a touch of a few buttons. No need for complex scientific calculators or memorizing conversion formulas.
![Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz pink Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz pink](https://sourceware.spillersusa.com/lowres/detail/ERB19199.jpg)
Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz pink
Item No. ERB19199
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. SEI Certified. Meets the low temperature (LT) option of the Z89.1 Standard. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz lime Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz lime](https://sourceware.spillersusa.com/lowres/detail/ERB19220.jpg)
Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz lime
Item No. ERB19220
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. SEI Certified. Meets the low temperature (LT) option of the Z89.1 Standard. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, full brim, non vented, color: white Americana Hard hat, 4-pt ratchet, full brim, non vented, color: white](https://sourceware.spillersusa.com/lowres/detail/ERB19221.jpg)
Americana Hard hat, 4-pt ratchet, full brim, non vented, color: white
Item No. ERB19221
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. SEI Certified. Meets the low temperature (LT) option of the Z89.1 Standard. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, full brim, non vented, color: yellow Americana Hard hat, 4-pt ratchet, full brim, non vented, color: yellow](https://sourceware.spillersusa.com/lowres/detail/ERB19222.jpg)
Americana Hard hat, 4-pt ratchet, full brim, non vented, color: yellow
Item No. ERB19222
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. SEI Certified. Meets the low temperature (LT) option of the Z89.1 Standard. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, full brim, non vented, color: orange Americana Hard hat, 4-pt ratchet, full brim, non vented, color: orange](https://sourceware.spillersusa.com/lowres/detail/ERB19223.jpg)
Americana Hard hat, 4-pt ratchet, full brim, non vented, color: orange
Item No. ERB19223
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. SEI Certified. Meets the low temperature (LT) option of the Z89.1 Standard. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, full brim, non vented, color: red Americana Hard hat, 4-pt ratchet, full brim, non vented, color: red](https://sourceware.spillersusa.com/lowres/detail/ERB19224.jpg)
Americana Hard hat, 4-pt ratchet, full brim, non vented, color: red
Item No. ERB19224
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. SEI Certified. Meets the low temperature (LT) option of the Z89.1 Standard. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz orange Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz orange](https://sourceware.spillersusa.com/lowres/detail/ERB19225.jpg)
Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz orange
Item No. ERB19225
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. SEI Certified. Meets the low temperature (LT) option of the Z89.1 Standard. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, full brim, non vented, color: blue Americana Hard hat, 4-pt ratchet, full brim, non vented, color: blue](https://sourceware.spillersusa.com/lowres/detail/ERB19226.jpg)
Americana Hard hat, 4-pt ratchet, full brim, non vented, color: blue
Item No. ERB19226
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. SEI Certified. Meets the low temperature (LT) option of the Z89.1 Standard. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz yellow Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz yellow](https://sourceware.spillersusa.com/lowres/detail/ERB19228.jpg)
Americana Hard hat, 4-pt ratchet, full brim, non vented, color: hi-viz yellow
Item No. ERB19228
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. SEI Certified. Meets the low temperature (LT) option of the Z89.1 Standard. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: hi-viz lime Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: hi-viz lime](https://sourceware.spillersusa.com/lowres/detail/ERB19360.jpg)
Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: hi-viz lime
Item No. ERB19360
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. Accessory slots accommodate a variety of eye, face, and hearing products. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: white Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: white](https://sourceware.spillersusa.com/lowres/detail/ERB19361.jpg)
Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: white
Item No. ERB19361
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. Accessory slots accommodate a variety of eye, face, and hearing products. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: yellow Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: yellow](https://sourceware.spillersusa.com/lowres/detail/ERB19362.jpg)
Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: yellow
Item No. ERB19362
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. Accessory slots accommodate a variety of eye, face, and hearing products. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: orange Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: orange](https://sourceware.spillersusa.com/lowres/detail/ERB19363.jpg)
Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: orange
Item No. ERB19363
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. Accessory slots accommodate a variety of eye, face, and hearing products. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: red Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: red](https://sourceware.spillersusa.com/lowres/detail/ERB19364.jpg)
Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: red
Item No. ERB19364
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. Accessory slots accommodate a variety of eye, face, and hearing products. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: hi-viz orange Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: hi-viz orange](https://sourceware.spillersusa.com/lowres/detail/ERB19365.jpg)
Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: hi-viz orange
Item No. ERB19365
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. Accessory slots accommodate a variety of eye, face, and hearing products. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: blue Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: blue](https://sourceware.spillersusa.com/lowres/detail/ERB19366.jpg)
Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: blue
Item No. ERB19366
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. Accessory slots accommodate a variety of eye, face, and hearing products. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: gray Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: gray](https://sourceware.spillersusa.com/lowres/detail/ERB19367.jpg)
Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: gray
Item No. ERB19367
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. Accessory slots accommodate a variety of eye, face, and hearing products. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: green Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: green](https://sourceware.spillersusa.com/lowres/detail/ERB19368.jpg)
Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: green
Item No. ERB19368
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. Accessory slots accommodate a variety of eye, face, and hearing products. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8
![Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: hi-viz pink Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: hi-viz pink](https://sourceware.spillersusa.com/lowres/detail/ERB19369.jpg)
Americana Hard hat, 4-pt ratchet, standard brim, non vented, color: hi-viz pink
Item No. ERB19369
12 Hard Hats in a Case - best price when bought by the case 100% Made in the USA Meets ANSI/ISEA Z89.1, TYPE 1 Class C, E, and G. 4-point woven nylon suspension. Moisture-wicking brow pad is removable, washable and replaceable. Accessory slots accommodate a variety of eye, face, and hearing products. Accommodates a chin strap. Goggle retaining slots on suspension. Both Mega Ratchet and Slide-Lock Suspensions adjust to head sizes - 6.5 - 8