Selected parts available for online ordering for customers in the USA.

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BLADE - SG420, 18 DEG V, 2.0"
  • 208840
  • 12600
  • Call for availability
  • 1
  • EA
  • $107.30 USD
  • Usually ships within 1-2 business day

    Can ship as small parcel

    Only ships to USA & Canada

  • For SG-420 machines
  • Includes Left and right blades
  • Carbon steel, heat treated
  • Black oxide finish
Replacement blades for cutting 18 degree grooves 2 inch duct board. Includes both the left and right blades.

Need help finding your machine or parts ?

Use your mobile device and Google® Lens. ?

Use your mobile device and Google® Lens to visually search for replacement parts for CertainTeed and Unisul insulation machines.
  • Determine if your Google® search app has Google® Lens already embedded in it.
    - Look for the camera icon in your Google® app search box. google lense searchbox
  • If your Google® search app has Lens, select the camera icon and follow the Google® Lens instructions for using the camera on your mobile device to find your CertainTeed insulation machine and/or parts using those from your machine. machine and/or parts using those from your machine.
    - This works best if you are in a well-lit area.
  • If your Google® app does not have Lens embedded, you may be able to download it from your app store.
  • - Select your app store and search for Google® Lens. Find the app with the logo shown here:google lense icon
  • - Once installed on your mobile device, open the Google® Lens app and use your mobile device camera for find the replacement parts you need for your CertainTeed or Unisul insulation machines. Google® provides in-app instructions for use.
Quick Tips for using visual search with your mobile device camera:
  • For best results, scan the serial plate from your machine. It has the model number to help you find the correct parts for your specific machine. Here is a sample one:
    OR
  • Scan the front on your machine.
  • steel lable of machin