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Internet # 202035334

Model # 27318

Store SKU # 504309

  • Ideal for measuring surfaces up to 18 in.
  • Durable stainless steel construction
  • Features 1/16 in. and mm graduations
  • View More Details
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Product Details
18-inch ruler featuring a hole on the end for easy hanging

Hole Allows for Easy Hanging

A hook on the end of this ruler makes it easy to hang when it is not in use, keeping it in easy reach.

18-inch stainless steel ruler designed for lasting strength

Stainless Steel Construction for durability

Thick stainless steel construction makes this ruler a lasting tool with a straight edge.

Stainless steel ruler with inch and mm markings

Clear Markings in Inches and Millimeters

Bold black markings in both inches and mm make it easy to get a precise measurement using this ruler.

About This Product

The Empire 18 in. Stiff Ruler is designed for long-term use. The ruler is crafted with stainless steel for strength and durability and features etched black graduations, allowing measurements to be read more clearly. It also features inch measurements up to 16ths and metric measurements up to millimeters. It has a hanging hole for easy storage.


  • Stainless steel construction
  • Graduations read in 8ths, 16ths, and millimeters
  • Permanent and accurate photo-engravings/electrolytical etchings
  • Heavy-duty aluminum straight edge - 1 1/8" width
  • Extra thick material for added durability
  • Hang hole included for convenient storage
  • 1 year limited warranty
  • Shop All Milwaukee Products
  • Return Policy

Product Information

Internet # 202035334

Model # 27318

Store SKU # 504309

Additional Resources

Shop All Empire
From the Manufacturer


Dimensions: H 20.25 in, W 1.12 in, D .031 in


Assembled Depth (in.)

.031 in

Assembled Height (in.)

20.25 in

Assembled Width (in.)

1.12 in

Maximum Length (in.)

18 in

Minimum Length (in.)

0.063 in






Hand Tool Type



Stainless Steel

Measurement System

Inches, Metric



Tools Product Type

Hand Tool

Unit of Length

Centimeter, Inch, Millimeter

Warranty / Certifications

Manufacturer Warranty

Product is warranteed on a manufacturer's defect.

Questions & Answers

Q:Is there a scale with 10th, 50th, and/or 100th of an inch available?
by|Mar 31, 2023
0 Answer
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Q:Will a pencil fit in the hole for tracing?
by|Mar 27, 2023
0 Answer
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Q:How wide is the ruler? Is it exactly 1 inch? The description says 2 1/8? but it is obviously wrong looking at the photo.
by|Mar 27, 2023
0 Answer
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Q:Does this have the decimal conversion on the back ?
by|Aug 27, 2022
1 Answer
Answer This Question

A:  Hello Trey- yes this rule does have decimal conversion on the back.

by|Feb 2, 2023
    1 found this answer helpful
    Showing 1-4 of 10

    Customer Reviews

    4.6 out of 5

    • 4.6 out of 255 reviews
    • 84% recommend this product
    Filter by:
    Showing 1-10 of 255 reviews
    Good for the money.
    Its accurate and easy to read. Not much else to say.
    • Verified Purchase
    • Recommended
    Not straight
    I bought this to check cylinder heads for warpage. Unfortunately the ruler is not precisely straight. It gives different indications depending on which edge I try to measure with. If you need to check straightness by sliding a feeler gauge under the straight edge, this ruler will NOT do the job.
      Zero isn't the end of the ruler
      The markings of the ruler dont start at the end of the ruler. This means you cannot hold the end against somethings and measure it. The ruler doesn’t even start a simple distance from the end. It’s more than an 1/8” but less than 1/4”. For woodworking or metalworking this thing is useless. If i hadn’t gotten it as a gift i would return it. Now it will sit in my tool chest collecting dust. I ish i could give it less than 1 star
        • Recommended
        19 found this review helpful
        I needed an 18" straight edge to check the relief on my guitar neck while I adjusted the action. ...
        I needed an 18" straight edge to check the relief on my guitar neck while I adjusted the action. I looked in several stores and was about to give up finding what I was looking for. Then I thought I would try Home Depot and I found exactly what I needed. The ruler was the right length and weight and allowed me to determine the relief on the neck was where I wanted it to be.
        • Verified Purchase
        • Recommended
        8 found this review helpful
        A good sized ruler with multiple scales...good for the shop
        Sometimes my tape measure is not the right measuring tool - particularly for certain woodworking projects. A ruler works better. This 18-inch ruler is a good size for projects that require precision. I have found that 12-inch rulers are generally not long enough and anything plastic will either bend or get nicked and then quickly become useless. This ruler solves the problem. 1. The markings do not start at the end, so you are sure that the first inch of the ruler is a full inch, and not worn down or cut just a hair short 2. There are two sets of scales, plus metric: 1/16" on one side, 1/32" on the other and MM on both sides 3. Stiff, but still flexible The only thing to note is that this ruler is stiff, not rigid. It is slightly flexible even though it is made of stainless steel.
        • Recommended
        5 found this review helpful
        Dual scales. Markings don't start at edge.
        HD Store SKU # 504309. The ruler markings start about 1/8" from the left end. On the front the top scale is in 32nds and the bottom scale is in millimeters that has stamped 10, 20, ... 450. On the back the top scale is in 16ths and the bottom is in millimeters. The only thing I'm worried about is if this "stainless" steel rulers can corrode. I'm using it for photo mats. It is made in India and inspected in the USA.
        • DIY
        • Verified Purchase
        • Recommended
        7 found this review helpful
        Convenient, sturdy ruler
        This review is from 6 in. Stiff Ruler
        • Verified Purchase
        • Verified Purchase
        Didn't like the rounded edges on one end.
        This review is from 6 in. Stiff Ruler
        • Verified Purchase
        Perfect size. I like that I can hang it up with pre drilled hole instead of throwing in my toolbox.
        • Verified Purchase
        Showing 1-10 of 255 reviews