Best Thumb Attachment on the Market

Check out our Weld-On Hydraulic Thumb at Work in this Demo. Thanks to the aggressive design of our teeth our Thumbs can easily get a hold of large rocks such as this to get them out of the way.

Thumb Attachment - Size Chart 

Find the right size excavator thumb for your machine below.  All Excavator and Backhoe thumb attachment lengths are based on the operating weight rating of the machine. However, sizes may vary due to additional attachments such as a quick connect or length or the arm.

For the most accurate size we suggest you measure your machine with these easy measuring instructions.

We differ from most attachment companies by offering a wider range of compact excavator and backhoe attachments. This ensures our thumbs will fit your machine like it was custom build for it. 

Our Universal Thumb Attachments are 7" wide and made to work with all width buckets. If you'd like a wider thumb attachment we also offer 10", 14" and 24" wide thumbs. Give us a call for a quote on a wider thumb today. 

Excavator Thumb Attachment Measurement


Size Chart ( Based on Operating Weight )

Length of Thumb 

Machine Operating Weight 
Suggested Thumb Length
0 - 4,000 lbs.
18 “ 
4,000 - 6,000 lbs.
6,000 - 8,000 lbs.
8,000 -9,000 lbs. 27"
9,000- 10,500 lbs.


10,500 - 12,500 lbs.
12,500 - 15,500 lbs. 36"


Important Note* If your using a  quick coupler ( quick connect ) to swap your buckets its always best to go with the next length up to compensate. Also you want the teeth of the thumb to meet the teeth of the bucket to prevent any binding.

Width of Thumb

Bucket Width Thumb Width
Any Bucket  7" Universal 
10" 7" or 10"
12" 7" or 10" 
18" 7",10" or 14"
24" 7" ,10" ,14" or 24"


Important Note*  You typically do not want a thumb to be wider than the bucket on the machine. Especially if your switching buckets often. Thats why many of our customers select our 7" Universal Width Thumb.