An animation showing the Tog-L-Loc process

BTM UniCroc Hand Held Clinching Unit

Pneumatically operated hand held clinching unit designed to join standing flanges.

UniClinch with Crocodile Action

The UniCroc uses a lever action mechanism to provide access to standing flanges by offsetting the clinch tooling away from the integrated air-hydraulic cylinder. This also provides a more ergonomically correct manual positioning of the tool to the joint location especially when suspended vertically above the part. This unit facilitates faster production through ease of positioning and better vision of the joint location.


Example of a UniCroc Clinch Unit

Example of a UniCroc Clinch Unit

Basic Product Specifications

  • Power Source: Self-Contained Air/Oil Booster
  • Max. Combined Material Thickness: 2mm [.08in] (Mild Steel)
  • Clinch Tooling Compatibility: Round or Lance-N-Loc® Joints
  • Tooling Sizes:
    Round: 3.8, 4.6 (Some Limitations Apply).
    Lance-N-Loc®: 3.0

A short video demonstrating a BTM UniCroc Hand Held Clinching Unit.


General Product Information

The following section contains general information about the product.

Click on a product to view a catalog page with more detailed information about that product:


Product Description
UniCroc Unit

Standard UniCroc

A pincher type action permits better access to certain part cross sections with better ergonomics.

The upper jaw is easily opened for quick and easy access to the part.

Product Application Information

The following sections are provided to help match a Hand Held Unit to your part. More detailed information is typically available in our Product Literature section.
If you are considering this product for your project, please view the contact information below.


Shown here are some typical applications that a UniCroc unit may be compatible with.
Not sure if your part is compatible with a UniCroc unit? Contact a BTM Application Engineer for assistance.


  • Angle and Sheet2.) Angle and Sheet
  • Standing Flange5.) Standing Flange
  • Outside Edge Flange6.) Outside Edge Flange
  • Brim to Brim7.) Brim to Brim
  • Hat on Sheet8.) Hat on Sheet
  • "U" and Sheet9.) "U" and Sheet
  • Side To Side "U's"10.) Side To Side "U's"
  • Two Piece Full Corner Overlap17.) Two Piece Full Corner Overlap
  • Full Corner Joggle Overlap18.) Full Corner Joggle Overlap
  • 45° Corner Overlap19.) 45° Corner Overlap
  • Hat Inside "U"21.) Hat Inside "U"

Download the Product Catalog to find technical information about the product. Download the User's Guide if you have already purchased the product.

Would you like to know if a UniCroc Unit is a good fit for your application, or would you like a quote?
Talk to an Application Engineer at 810-364-4567, or email us at sales@btmcorp.com. Business hours are 8am-4:30pm ET Mon-Fri.
You may also contact us by filling out the form below.


To help us with the quoting process, please email a drawing or CAD model of your part.
(If your drawing is near 10mb or larger, our FTP site is available. Contact BTM to obtain login information.)


UniCroc Hand Held Unit Contact Form
i The Punch Side has the "cavity" side of the joint. Punch Side and Button Side Example Note: Thicker material usually goes on the punch side.
i The Die Side has the "button" side of the joint. Punch Side and Button Side Example Note: Thicker material usually goes on the punch side.

* - Denotes a Required Field.

You may also be interested in the following BTM Hand Held Clinching Units:

Customer Information

The following section contains information for customers who have already purchased this product.

If you have already purchased this product, please fill out a brief customer satisfaction survey and let us know what you think.