What is a rifling button?

Rifling buttons are precision carbide tools used to form grooves and resize bores in tubular components. These tools come in a variety of sizes, ranging from small diameters to larger bore applications. They can be ground with any helical twist, either right- or left-handed, and are available in different styles, including groove-only, bore-only, or a combination of both.

How does a chamber reamer work?

A chamber reamer is a specialized fluted tool used to precisely cut the chamber of a barrel. The process involves inserting the reamer into the bore while the barrel rotates around it, usually using a lathe. This technique ensures the chamber is shaped to exact specifications, allowing for proper cartridge fitting and function.

What is the difference between reamer and drilling?

IDrilling, boring, and reaming each play a unique role in hole-making. Drilling is the first step, creating a basic hole. Boring then enlarges and shapes it to the desired size. Finally, reaming finishes the hole, providing precision dimensions and a smooth, accurate surface for optimal performance.

What is the rule for reaming?

The general rule for reaming is to leave 0.010" to 0.015" of material after the drilling operation for the reamer to remove. For small diameters, like 1/32" or less, this should be reduced to 0.003" to 0.006". It's often more effective to use a percentage of the hole size rather than a fixed range for optimal results.

What is the principle of a reamer?

A reamer works by being inserted into a pre-drilled hole that is slightly smaller than the final required size. As the reamer rotates, its cutting edges gradually remove a thin layer of material, enlarging the hole with precision and providing a smooth surface finish.

Rifling button Chamber reamer

Precision carbide tools for forming the rifling grooves and resizing the bore

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Rifling button combo

About us

Hammerton is one of the largest suppliers and manufacturers of Rifle Buttons. All the tools are crafted using specially selected carbide grades, chosen meticulously during the design process to guarantee precision cutting edges.

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Rifling button combo 10mm Automatic

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Rifling button combo .357 Magnum

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Set

Сhamber reamer

Advantages

01 /

High-precision chamber reamers are custom-made to meet your exact specifications, ensuring exceptional performance and precision.

02 /

Firearm push and pull reamers are crafted from specialized carbide grades, carefully selected during the design phase to deliver superior cutting edges.

03 /

Our combo buttons have two working surfaces so that both the bore and groove dimensions are controlled. No separate sizing button is needed

04 /

Hummerton reamers provide precise tolerances, ensuring high-quality and reliable performance.

Frequently asked
questions

FAQ

01

What is a rifling button?

Rifling buttons are precision carbide tools used to form grooves and resize bores in tubular components. These tools come in a variety of sizes, ranging from small diameters to larger bore applications. They can be ground with any helical twist, either right- or left-handed, and are available in different styles, including groove-only, bore-only, or a combination of both.
02

How does a chamber reamer work?

A chamber reamer is a specialized fluted tool used to precisely cut the chamber of a barrel. The process involves inserting the reamer into the bore while the barrel rotates around it, usually using a lathe. This technique ensures the chamber is shaped to exact specifications, allowing for proper cartridge fitting and function.
03

What is the difference between reamer and drilling?

IDrilling, boring, and reaming each play a unique role in hole-making. Drilling is the first step, creating a basic hole. Boring then enlarges and shapes it to the desired size. Finally, reaming finishes the hole, providing precision dimensions and a smooth, accurate surface for optimal performance.
04

What is the rule for reaming?

The general rule for reaming is to leave 0.010" to 0.015" of material after the drilling operation for the reamer to remove. For small diameters, like 1/32" or less, this should be reduced to 0.003" to 0.006". It's often more effective to use a percentage of the hole size rather than a fixed range for optimal results.
05

What is the principle of a reamer?

A reamer works by being inserted into a pre-drilled hole that is slightly smaller than the final required size. As the reamer rotates, its cutting edges gradually remove a thin layer of material, enlarging the hole with precision and providing a smooth surface finish.

Payment & Delivery

Payment Options:

Our website supports three payment methods:

Cryptocurrency (USDT TRC20) – For payments in other cryptocurrencies, please contact us via the feedback form, and we will provide the necessary payment details.
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Direct Bank Transfer – We provide account details for local bank transfers in your currency (excluding the USA). Payments can also be made through Wise with any bank card, requiring a simple 3-minute registration.
Pay via PayPal – you can pay with your credit card.

For customers in the USA, we provide GBP account details for bank transfers, or you can use any bank card through Wise after quick registration.

Additionally, our products are available on eBay and Amazon.

Delivery Information:

Some specialized buttons may require up to 7 days for production. We ship internationally via state airmail, with delivery times ranging from 14 to 30 days depending on your location. Once shipped, a tracking number will be provided to monitor your parcel’s progress.

Thank you for shopping with us!

Hammerton is a leading manufacturer of precision carbide tools for the firearms industry, specializing in rifling buttons, pull bore reamers, hammer forging mandrels, and rifle/bore gauges. Our products are designed to deliver exceptional accuracy and durability, ensuring that your barrels meet the highest performance standards.

Rifling Buttons

Hammerton’s rifling buttons are designed to form rifling grooves and resize bores in gun barrels. Available in sizes from 14 caliber rifles to 10 gauge rifled shotguns, these buttons can be customized with any helical twist—right or left-handed. Whether you’re using a push or pull method, our buttons provide consistent, high-quality results. For extended tool life and enhanced barrel finishes, we recommend coatings like Titanium-Nitrate (TIN) or Titanium Aluminum Nitrate (TIALN/Futura Nano).

Our rifle buttons are made to your exact specifications, taking into account factors like material, hardness, and wall thickness of the barrel blank. This attention to detail ensures accurate sizing, especially when stress-relief processes are planned.

Pull Bore Reamers

Hammerton’s multi-flute pull bore reamers, available in 4 or 6 flutes, are designed for precision bore sizing. Pulled or pushed through gun-drilled barrels, these reamers remove imperfections and ensure a clean, accurate bore. With coolant flowing through the tool, we ensure optimal performance and an excellent surface finish inside the barrel.

Hammer Forging Mandrels

For manufacturers utilizing the hammer forging process, Hammerton offers high-impact carbide mandrels. These tools feature precision-ground rifling patterns that ensure accurate reproduction of the barrel’s interior. We maintain tight tolerances to guarantee perfect results every time.

Rifle/Bore Gauges

To measure the internal dimensions of rifled barrels, Hammerton produces carbide rifle and bore air gauges. These tools meet SAMMI barrel specifications and provide precise measurements when paired with air columns and master setting rings. Ensure your barrels meet exact standards with our reliable gauges.

For premium rifling tools, bore reamers, and gauges, Hammerton is your trusted partner. Contact us today to discuss your specific requirements!