Runser Custom Machining LLC.
Runser Custom Machining offers Hydraulic Thumb Attachment Kits for mini excavators brands including Bobcat, John Deere, Kubota, grapple buckets for Kubota, we also do custom thumb kits or claw kits with ease.
RCM kits are a great value while offering incredible quality, design and durability. We are continually striving to produce the best quality products possible.
RCM is a family owned and operated business; producing thumbs for over 10 years. Due to our designs, fabrication quality, and customer service, we have many happy customers.
Quality Comes First
Made in the USA
Family owned and operated
1-Year warranty
30-Day returns
Free Shipping
Handling Time 1 - 2 Day
Shipped UPS Ground 3 - 5 Business Days
RCM manufactures professionally designed thumb claw attachments for mini excavators in Idaho. Our thumbs are designed to fold up as close to the boom as possible under 12”. With 120 +/- degrees of rotation, for maximum use. Made in the USA, using stronger AR400 3/4'' steel that will not wear down. We also offer kits for machines with different arm lengths, optional weld on base mounts, and custom kits upon request.
Shipping to Alaska, Hawaii, Canada, and Puerto Rico available. Contact us with your address for shipping prices.
Please contact us with any questions or custom thumbs requests.
What Is in our kit
RCM Custom Designed Thumb
3/4’’ AR400 Steel Tines
Custom Hydraulic Cylinder
Professionally made in the USA
Two 1/2’’ Hydraulic Hoses
Available in different/custom lengths
Main pin
4140 Heat Treated, High Strength Steel (HSS)This HSS pin will last, decreasing chances of: complications, breaks, wear and tear.
NOT CENTER DRILLED
Hydraulic Cylinder Pins
Two pins, one single hole, one double hole, made with C-1018 steel.
Two Flat Face Quick Connect couplers
(1 Male/ 1 Female)
Two 90-degree elbows
Four Nuts and bolts
Optional cylinder mounts available
Spacers available if needed contact us
Replacement parts available
Kit may vary depending on brand and model
Please contact us with any questions or custom thumbs requests.
Kubota Backhoe L47 L48 M62 Thumb Kit
Kubota Mini Excavator Quick Connect Thumb Kit
with Kubota Three Tine Grapple Bucket.
Product Reviews
“The quality is top notch, everything fit perfect. This thumb is made better than any we have on all our equipment. : )”
— Douglas
“Quick shipping, helpful, works perfectly”
— Christopher
“I’ve ordered (4) of these kits now for different machines and they are the best bang for your buck on the market. I wish they would make them for more models and brands. They hold up well and are easy to install.”