Precision Straight Edges
		Refund Policies, Terms and Conditions of Sale
Made with Durable Steel		Ordering Straight Edges
Corrosion Protection Included		Shipment Times for Orders
Chamfers on Edges Included		Payment Terms
Special Designed Custom Straight Edges		Credit Cards Accepted
Straight Edge Certification of Quality		Uses for Precision Straight Edges
Inspection Procedures		FAQ and Other Alternatives
Quality inspection and alignment tooling Precision ground steel straight edges We build straight edges up to 15 feet long Specials and custom designs available
		PrecisionStraightEdge.com
Precision Straight Edges - Standard Sizes
We manufacture precision straight edges from 3 feet to 15 feet long. These standard units are made from steel and are precision ground. Standard straight edges include ONE useable edge. Flatness specifications range between 0.001 to 0.004 inch depending on the length of the unit. Flatness and straightness tolerances for the maximum allowable deviation over the length of the entire measuring surface are shown in the chart below:
Part Number Straight Edge Description PDF Weight Lbs Flatness Print Straightness SE36x3x05 36" long x 3" wide x 1/2" thick - no holes 15.3 0.001 inch SE48x3x05 48" long x 3" wide x 1/2" thick - no holes 20.4 0.001 inch SE60x3x05 60" long x 3" wide x 1/2" thick - no holes 25.5 0.001 inch SE72x3x05 72" long x 3" wide x 1/2" thick - no holes 30.6 0.001 inch SE84x3x05 84" long x 3" wide x 1/2" thick - no holes 35.7 0.001 inch SE96x4x05 96" long x 4" wide x 1/2" thick - no holes 54.3 0.002 inch SE120x4x05 120" long x 4" wide x 1/2" thick - no holes 67.9 0.002 inch SE144x4x05 144" long x 4" wide x 1/2" thick - no holes 81.5 0.002 inch SE168x5x05 168" long x 5" wide x 1/2" thick - no holes 118.9 0.003 inch PAVEFLAT 192" long x 1.5" wide x 3.6" thick - Runway Unit 33.0 0.012 inch Straight Edges with 2-3/8" drilled holes to reduce weight SE96x4x05H 96" long x 4" wide x 1/2" thick - with 31 holes  34.9 0.002 inch SE120x4x05H 120" long x 4" wide x 1/2" thick - with 39 holes  43.5 0.002 inch SE144x4x05H 144" long x 4" wide x 1/2" thick - with 47 holes  52.1 0.002 inch SE168x5x05H 168" long x 5" wide x 1/2" thick - with 55 holes 84.4 0.003 inch SE180x5x075H 180" long x 5" wide x 3/4" thick - with 59 holes 135.6 0.004 inch For more information see our price List - Click Here       If you can't find what you need. We build special straight edges - Click Here for more information.
Straight Edges with Certified Quality
We provide certification document for each precision straight edge. We will check your precision straight edge using a certified granite surface plate with traceability to NIST standards. Our inspection procedures check the flatness and straightness for each straight edge. Standard straight edges include certification for only ONE edge. We cannot guarantee the quality of both edges of the straight edge unless we grind and certify both sides. We can certify both edges for an additional charge of $125. In addition to the extra grinding and inspection time, this additional charge includes masking, cleaning tape residue, and applying rust preventative on the two unpainted edges. If you purchase this extra option the straight edge will include TWO useable edges that are straight, flat, and parallel within the tolerance specified.
Straight Edges Made from Durable Steel
Our standard precision straight edges except our 16-foot Runway Unit are built from hot rolled steel that has not been heat treated. Hot rolled steel does not require annealing and the high temperature prevents stress from accumulating in the material which results in better dimensional stability than cold worked materials. Our units typically hold shape better as there is no residual memory effect from stresses caused by hardening. We achieve very close tolerances at competitive pricing. Most of these units were designed for careful inspection and used by professionals who know how to handle a precision tool. Unfortunately, even hardened steel will nick if dropped.
Corrosion Protection Included on Straight Edges
Standard precision straight edges are normally painted on five sides to prevent corrosion. This leaves only one side to keep oiled. We can leave your unit unpainted but then you would have to oil all of the sides or it would rust. Then it would then be very slippery to pick up. The unpainted side is certified for the entire length of the unit.
Chamfers on Edges Included on Straight Edges
We normally chamfer the four edges on a straight edge to prevent cuts when handling. The standard straight edge includes lightly chamfer edges that measure (45º x .010")
Ordering Straight Edges
Let us supply your next precision straight edge. Your straight edge quality is guaranteed and backed by our return policy. We offer free shipping in the continental USA when you order our standard precision straight edges if they are smaller than 96-inches long. Click here to order using a credit card. We can also accept purchase orders from approved customers for straight edges. Please make your purchase order out to: Mike Petsch and Associates, Inc. Your purchase order should include your shipping and billing address. You can also email orders to: petsch@juno.com or fax your orders to (937) 438-8035.
Shipment Times for Orders
Standard precision straight edges up to 6 feet in length (in tubes) are usually in stock. Most other standard straight edges ship in 1 to 2 weeks ARO. We ship most special designed straight edges approximately 1 to 4 weeks after we have received your design approval.
Payment Terms
Our terms for commercial customers are usually Net 30 days with approved credit or COD without approved credit. If you are applying for credit with our company, and if you are not a major Fortune 500 sized corporation, please include your standard credit references with the order. If you need a W-9 or other information from us to set us up as a vendor, we promise a very quick turnaround on this paperwork.
Credit Cards Accepted
We also accept credit cards. If you are ordering a precision straight edge and would like to use a credit card you contact us at: 937-438-8031. If you would like to order a straight edge using PayPal - Click Here
	FAQ and Other Alternatives
	Frequently asked questions include: Do I really need to lug around a heavy steel straight edge to check flatness and straightness? What about using Lasers? Isn't there something easier or cheaper out there? Why can't we check it with our CMM? Couldn't I just buy some ground flat stock and use it? Will aluminum straight edges work? What quality edge do I need to do the job? For a few ideas concerning possible alternatives to using precision straight edges <Click Here> for our answers to these FAQ
Uses for Precision Straight Edges
Precision straight edges are useful for leveling machine tools and checking the flatness of surfaces. In most of these applications, the straight edge is used as a reference surface to check your part. With a straight edge you can track and isolate potential sources of error. The amount straightness deviation usually measured by inserting a feeler gauge between the part and the straight edge.
Our customers keep finding new and innovative uses in a wide range of industries. Our precision straight edges are being used for the following applications: Equipment Alignment of: Assembly fixtures, Wood flooring mills, Aircraft Body Joining, Table Saws, Jointers, Nuclear reactor piping, Glass display cases, Coupling alignment, Blanchard grinder chuck regrinding, Tunnel boring equipment, Rubber rollers for counter laminate feeding, Wood molding machinery, Fan blades, Railroad tracks and switch frogs, Sheet metal perforating equipment, Double disc grinder spindles, Router fences, Die cast machine platens, Chain & sprockets, Carpet trimming equipment, Roll forming dies, Reactor cooling pumps, Printing Presses, Oil refinery equipment, Coil slitting equipment, sputtering targets, Laminate flooring trimming, Print heads for large scale printers, Plywood manufacturing machinery, Blanking press, Natural gas pipeline equipment, pool tables, and Cement plant processing equipment. Straightness Inspection of: Engine heads, Engines blocks, Engine flywheels, Engine crankshafts, Granite counters, Printing Litho stones, Aluminum coil rolls, Refractory brick, Ceramic pump seal faces, Turbine blades for windmills, Chemical pressure vessels, Roadbeds and paving, Injection molded plastic containers, Snowmobile drive components, Engineered molded plastics, Fabricated weldments, Aircraft ribs, Lift truck masts, and Concrete Levees, Runways.