Kapro 308 Aluminum Straight Edge Ruler - 1/8" & 1/16"

Kapro 308 Aluminum Straight Edge Ruler - 1/8" & 1/16"

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Kapro 308

The Kapro 308 Straight Edge Ruler is a contractor grade tool designed with the professional in mind. Its rigid and accurate aluminum straightedge will provide you accurate measurements to ensure your task is completed correctly. The thickness of our straightedge provides a nice cutting or drawing edge.

Two different scales provide you increments of 8ths and 16ths. Use this ruler for carpentry, drywall, drafting, and home-improvement projects! The contractor grade, anodized aluminum is coated in a wear-resistant, UV cured screen for added protection.

At Kapro, we reimagine precision tools and accessories for professional craftsmen to weekend warriors while setting high standards by driving innovation in our designs.

 * Do not use solvents to clean ruler as they degrade the screen printing.


Click to view Product Manual

  • WIDE ➤ 2" Width
  • VISIBLE ➤ Wear-resistant UV cured screen printing
  • PRECISE ➤ Printed scale accurate to 0.007"/1" (0.7mm/m)
  • DURABLE ➤ Contractor grade, anodized aluminum resists corrosion

What does the lifetime vial accuracy warranty cover?

The lifetime vial accuracy warranty covers the part of your vial, not the whole level.

Please note that only solid acrylic vials are covered under the lifetime warranty. Cylindrical vials are covered for 1 year - frame damage voids the warranty.

Should your vial fail due to factory defect, Kapro will either replace the level or offer MSRP value in the form of a coupon to use here on ShopKapro, depending on availability - discontinued items are not eligible for exact replacement.

The warranty does not cover damage to the level from misuse, abuse, or accidental damage.

Should the vial fail due to frame damage, warranty is voided.

If my frame is damaged, will it be covered under warranty?

No, the lifetime vial accuracy warranty only covers the part of the vial for factory defects.

Frame or milled surface damage from misuse, abuse, or accidental drops and falls void the warranty on the vial.

Are cylindrical vials covered under the lifetime vial accuracy warranty?

No, cylindrical vials are only covered under a 1 year limited warranty - Frame damage voids warranty.

Shipping Policy

Orders will be shipped via our preferred carrier(s) - Ground service only


All orders under $30 will be charged a $7.00 flat shipping fee

All orders will be shipped within 2 business days from receipt of order
notification email

Allow 5-7 business days for delivery


All orders will be charged a $25.00 flat shipping fee

All orders will be shipped within 2 business days from receipt of order
notification email

Allow 7 - 10 business days for delivery

Return & Exchange Policy

Made a purchase error- no worries:

100% credit will be issued via the original form of payment if the item is
returned within 30 days of invoice date and the item is received back
in the condition it was originally shipped, including all components and

Cost of returning the product is at your expense.


Have a damaged or defective product? Or just need a replacement part to
bring it back to working order? 

Contact our Customer Service staff at 888-4LEVELS or kti@kapro.com for the best handling.
However please see our warranty statement for more information.

Please do not make any returns without prior authorization!