KERF CUTTER INNOVATION

A Completely New Way to Repair Valve Boxes

repairing valve boxes has never been so quick and easy

Kerf Cutter is the latest innovation for municipal water and street departments to fix broken valve boxes. The Kerf Cutter is designed to save you labor costs and repair your valves without digging up your streets.

Innovating the cumbersome process of valve box repairs

Making it faster and more reliable

The Kerf Cutter was invented to solve a problem that all municipalities struggle with. Repairing valve boxes is a difficult process, requiring time, staff, and inefficient tools. We built the Kerf Cutter to make the process more efficient while providing a solution that lasts.

Save time, save money, and save future costs of repairing valve boxes that break again and again.

"Easy to use and saves time and money!”

BLAINE L, NORTH DAKOTA

the tools you need to start using your kerf cutter right away

Your purchase includes the parts you need to get up and running in minutes. Your Valve Box Repair Kit comes with:

  • 2 60V Batteries (cordless model)
  • 2 Diamond Blades
  • Aluminum Box
  • Allen Wrench
  • Spanner Wrench
  • Screwdriver
  • Basket
  • Blade Adaptor
  • Extra Washer & Lock Nut
  • Depth Gauge
  • Grinding Bit
  • Sweeper Brush
  • Lubricant
  • Threaded & Slip-fit Pullers
VIEW PATENT #9599271 B1

Patented Design

patent #9599271 B1

The Kerf Cutter is the latest innovation for municipal water and street departments to fix broken valve boxes. It is a handheld, electric tool with a circular blade on the end. It is inserted into the valve box and cuts off the top of the valve box.

Once that is removed, a new top can be inserted and leveled with the pavement. The new tool and updated process eliminates the need for closing busy streets for long periods of time, reducing traffic disruption and community frustration.

View the Patent

using the kerf cutter

Step 1: Measure

  1. Insert the depth gauge into the valve box hole, resting the adjustable slide at the interior mid-section.
  2. Adjust the handle until the short stub aligns with the surface, then lock the thumb screw to set your depth.
  3. Move the basket guide collar to match the measured depth, place the mid gauge on top of the basket, adjust for alignment, then tighten the set screw and insert the basket into the valve box.

Step 2: Cut

  1. Assemble the cutting components in this order: cutting blade (Spyder wheel), washer, then lock nut. Attach to the Kerf Cutter and hand-tighten the lock nut.
  2. Insert the cutting assembly into the basket, making sure the adapter fits into the spring-loaded shaft and aligns with the keystone tabs.
  3. Mount the Kerf Cutter onto the adapter, again aligning it with the spring-loaded shaft and keystone tabs for a secure fit.
  4. Power the tool (plug in or install battery) and begin cutting with minimal pressure—let the tool do the work.
  5. Focus the cut on the area where the blade passes over the valve box threads.
  6. After cutting, remove the Kerf Cutter and basket, then detach the blade from the tool.

Step 3: Replace

  1. Loosen the cut valve box by tapping it with a larger hammer.
  2. Thread the puller into the valve box (not past the cut line) and lift it out. If needed, use pliers and a rock bar for extra leverage.
  3. Clean the area and dry fit the replacement valve box top. If it doesn’t fit, use the grinding bit to remove any binding areas.
  4. Once it fits, apply gasket adhesive to the bottom of the repair top.
  5. Insert the new valve box top and seat it with a rubber mallet.
  6. Finish by applying a line of sealant around the outside of the valve box.

Kerf Cutter: Start to Finish

Learn to use the Kerf Cutter

Get in touch now

For a better solution to repairing broken valve boxes, don’t wait! Contact us for your on-site demonstration today.