High Performance Cutting Heads

Bor-It High Performance Cutting Heads

For over 35 years, contractors have trusted Bor-It Mfg. to provide the highest quality cutting heads for their critical applications. Bor-It cutting heads are engineered to meet your demanding tolerances and are built with the best materials available. For the longest lasting and most durable heads available, you can count on Bor-It to save you time and money. Most styles available from 4" up to 72" diameter. 1 3/8" hex to 5" hex drive available

Combination Cutting Heads

The combination head is ideal for sand, dirt, clay, and soft shale applications. This is our most popular general purpose head. - Replaceable carbide teeth and chippers - Wingcutters will over-cut for casing and provide easy access to the head

Heavy Duty Rock Heads

These tough, field prove heads utilize a "V" shape to provide self-centering action which helps maintain line and grade. The heavy duty heads are ideal for boring through solid rock of medium hard formations. -Replaceable carbide "bullet" teeth -"V" shape provides self centering action

Flat Face Rock Heads

Flat Face rock heads are the perfect solution for those difficult jobs where mixtures of rock, dirt and maybe even boulders are encountered. Our unique flat design doe not make this head as aggressive as the Heavy Duty head, but id does allow for the teeth to keep themselves cleaned out to keep cutting
- Ideal for soil mixtures of rock and dirt - Replaceable carbide "bullet" teeth - Designed for teeth self cleaning - Head diameters from 10" to 72"

Rollercone Heads

For solid rock over 8,000 psi, this is the head for the job. Made from either carbide tips or button bits, these heads are built to handle your hardest rock bores. These heads come standard with a hex adapter and stabilizer ring.
Ideal for solid rock harder than 8,000 psi
Head diameters from 4" to 72"
1 5/8" hex to 5" hex drive

Dirt Cutting Head

The dirt head is great for soft soil conditions. It is solidly built to assure the most outstanding, long lasting performance.
Replaceable lead snout, blade & chippers
Available 4" to 12" diameter
1 3/8" hex to 3" hex available

FAQ

Why is choosing the right cutting head so important?

The cutting head is the "business end" of your boring operation. Using a head that isn't matched to the soil conditions can lead to excessive wear on your augers, increased fuel consumption, and even machine failure. Bor-It designs specialized heads to ensure maximum penetration and efficient soil removal for every unique job site.

What type of cutting head do I need for rock?

For solid rock or heavy boulders, we recommend our Heavy-Duty Rock Heads equipped with replaceable carbide-tipped bullet bits. These bits are designed to rotate in their blocks, maintaining a sharp edge and "fracturing" the rock rather than trying to scrape it.

What is the best head for sand or loose soil?

In "flowing" or loose conditions, a Closed-Face Head is often best. These designs help maintain the integrity of the bore hole and prevent the surrounding soil from collapsing into the casing before it can be removed by the auger.

What is the Overcut, and how much do I need?

The overcut is the difference between the diameter of the cutting head and the diameter of the casing. Typically, a cutting head should be 1" to 2" larger than the casing. This creates a small clearance (annular space) that reduces friction, making it easier for the machine to push the casing forward.

Do Bor-It cutting heads feature replaceable parts?

Yes. To extend the life of your equipment, most of our heads feature replaceable teeth (shank-style or bullet bits). Instead of replacing the entire head when it gets dull, you can simply swap out the teeth in the field, saving time and significant costs.

Can I use a Bor-It cutting head with other auger brands?

Absolutely. Our cutting heads are manufactured with standard female hex connectors (2-1/4", 3", 4", etc.). As long as your lead auger has a matching male hex, our heads will provide a secure, high-torque connection.

How often should I inspect the cutting bits?

You should inspect your cutting head before every bore and, if possible, during long pushes. Look for: Rounded or chipped carbide tips: These significantly reduce cutting speed. Worn-down "pockets": If the blocks that hold the bits wear out, the bits can fly off, leading to an expensive mid-bore failure. Cracks in the welds: High-torque boring puts immense stress on the head's structure.

What happens if my cutting head is too small for the casing?

If the head is smaller than or equal to the casing diameter, the casing will rub against the soil for the entire length of the bore. This creates massive amounts of friction (skin friction), which can cause the machine to "stall out" or prevent the casing from moving forward entirely.

Does Bor-It offer custom-built cutting heads?

Yes. Since we manufacture our equipment in Ashland, Ohio, we can custom-engineer heads for specific challenges, such as extremely abrasive glacial till, sticky clay, or specific diameter requirements that fall outside of standard sizing.

How do I determine which hex size I need for my head?

Your cutting head must match the lead auger's male hex. If you are unsure of your size, measure the distance between two flat sides of the hex drive on your auger. Common sizes are 2-1/4", 3", or 4".

Can I get technical advice on a difficult bore?

Our team has over 55 years of experience in the trenchless industry. If you aren't sure which head will perform best in your local geology, call us at (800) 289-6639. We can help you select a configuration that maximizes your "footage per day."