US Saws Mark III Joint Clean-Out Saw

The Mark III Joint Clean-Out Saw is built to clean out concrete control joints and prep them for filling. Over time, control joints fill with dirt, debris, and old filler — and a clean joint is the key to a joint filler that bonds and lasts. The Mark III cuts the joint clean and consistent, so your filler keys in properly.

Call for pricing and availability, or request a quote — you’ll talk to a real surface-prep expert, not a call center — fast answers and real recommendations.

What It’s For

• Cleaning out concrete control joints before filling
• Removing dirt, debris, and old joint filler
• Cutting joints clean and consistent so new filler bonds
• Prepping joints for repair and refilling

Joints vs. Cracks

The Mark III is made for control joints — the straight, intentional joints cut into a slab. That’s a different job from chasing random cracks:

• Mark III Joint Clean-Out Saw (this tool) — cleans out straight control joints for refilling
• CC-100 Walk-Behind Crack Chaser and 5″ Hand-Held Crack Chaser — rout out random cracks before repair

Doing both joint and crack work? Call us and we’ll set you up with the right tools.

Why Clean a Joint First?

Joint filler only works if it bonds to clean joint walls. Filling over old filler, dirt, and debris leads to failure — the new filler won’t grab, and you’re back to redoing it. Cleaning the joint out first with the Mark III gives the filler a clean surface to bond to, so the repair lasts.

Frequently Asked Questions

What’s it for? Cleaning out concrete control joints and prepping them for filling.

How is it different from a crack chaser? The Mark III cleans straight control joints; crack chasers rout out random cracks. Different jobs, different tools.

Why clean the joint first? Joint filler needs clean joint walls to bond — cleaning out the old filler and debris first makes the repair last.

Order the Mark III Today

Call (815) 941-4800 x 1 or fill out our contact form. See our US Saws, accessories, and machines.

Item # 670013700 (US Saws SX13800)