The most important aspect of milling with end mills is to run the tool at the proper RPM (revolutions per minute or spindle speed)  and IPM (inches per minute or feed rate).  We have broken these recommendations down into material categories so you can make better decisions with how to productively run your end mills.  Certain high performance mills have very specific running parameters relative to their material families.  We have listed these also as individual recommendations by coating family.  These documents are downloadable in pdf formats by clicking the links below.

Using a hammer drill to bore into materials like concrete or brick can potentially dislodge the brick and mortar. Non-hammer drilling reduces the likelihood of this happening.

Feed rateformula

The speeds and feeds formulas are in the bottom of the charts below.  If you follow these guidelines, you will have a much greater success rate in part programming, and you will be milling more efficiently.

Drilling into concrete with a cordless drill is feasible, though it usually takes more time without the hammer function. However, when using the Adiseal Ultimate masonry drill bit, it becomes the fastest option for no-hammer drilling in concrete.

Feed rateforaluminummilling

To buy concrete drill bits in the UK, please contact us for details of you local stockist. For other countries that do not have a Adiseal distributor, please visit www.guglue.com

When choosing the right cutting parameters to run, most people focus on the speed  which relates to the machine RPM.  This is a mistake!  Focus on on the proper feed per tooth (FPT) first, and then adjust the speed.  Often when a part is programmed, and is being proven out for production, the programmer will choose conservative parameters and encounter chatter.  Chatter is nothing more that part vibration or noise, because the tool is not cutting properly.  Usually, the first response is to slow the RPM and the chatter will go away.  This often works, but this is unproductive.  What has just happened is that by reducing the speed and keeping the feed constant, the FPT has increased.  And most likely the FPT before was too low in the first place and that was what caused the chatter.

Aluminummilling speed chart

Using a hammer drill increases the likelihood of concrete cracking. To minimize the risk of concrete damage, it’s advisable to drill without the hammer function, even though it may take longer. The Adiseal Ultimate masonry drill bit is the swiftest option for non-hammer drilling and has been tested to achieve drilling speeds equivalent to an SDS drill bit.

Align the drill bit tip precisely with the marked spot on your material. Apply consistent and even pressure as you begin drilling, ensuring the drill remains level and perpendicular to the material’s surface.

Aluminum feed ratecalculator

Adiseal Ultimate masonry drill bit has proven to be the quickest option for concrete drilling without a hammer function. It offers numerous benefits over hammer drilling, such as reduced noise, less risk of vibration-related damage, and lower substrate damage risk.

Initiate the drilling process at a slow and controlled pace. As you make your way through the material, you can gradually accelerate for faster progress. Stay attentive to the drill’s feedback, and adjust the pressure as necessary to ensure you maintain control.

In their attempt to make available the best drill bits, also in the Adiseal Ultimate range is the fastest and most durable metal drill bit. In out test drilling into stainless steel with a drill press, it drilled faster and drilled more holes than any other metal drill bit. It was easily the best metal drill bit and it beat the best metal drill bits from the worlds biggest brands including Milwaukee, DeWalt, Bosch & Makita.

During our test using the Adiseal Ultimate masonry drill bit & multi-material drill bit in a standard cordless drill without the hammer function, it achieved the same drilling speed as a corded SDS hammer drill. Both drills took 5 seconds to drill into the brick. However, the SDS hammer drill caused the brick to break, a common issue with hammer drills. In contrast, the Adiseal Ultimate masonry & multi-material drill bit, used without the hammer function, did not cause the brick to break.

Cutting speed foraluminumwith carbide

Aluminum feed ratechart

Using the hammer function while drilling hard materials like brick can produce loud noise, posing a risk to hearing damage and causing disruptions to others. Opting for non-hammer drilling results in quieter operations, minimizing the risk of hearing damage and disturbing others.

Inspect the hole to verify it meets your specifications. If needed, remove any remaining debris or sharp edges for a finished result.

Use a pencil or marker to carefully mark the exact spot where you intend to drill your hole. This will ensure drilling precision.

Suhail Matadar has extensive experience in the construction industry as an electrician, involved in installing, inspecting, and testing electrical systems in various projects. He excelled in sales, working for a major UK wholesaler, selling construction products to professionals and the DIY market. Suhail's background includes working at a leading home emergency repair company dealing with trades people. With a BEng (Hons) degree in Electronic Engineering, Suhail has worked with PLCs in the nuclear fuel manufacturing industry. During his studies, he gained practical experience at a chemical manufacturing company known for producing award-winning cleaning, hygiene, and livestock protection products for over a century. Currently, Suhail runs a global business specialising in supplying, researching, testing, and distributing chemical construction products like adhesives and sealants.

The 1/4 inch hex shank also prevents the carbide masonry drill bit from spinning in the chuck and allows quicker changes.

Adiseal Ultimate masonry drill bit for concrete & multi-material drill bit can drill into many different materials including:

When hammer drilling on tough materials like brick, the substrate is at risk of breaking due to the impact of the bit. This is a concern, particularly in situations where the brick has been chased out, for example, to accommodate an electrical back box. Drilling without the hammer function diminishes the risk of substrate breakage, ensuring a safer drilling process.

Speeds and feeds calculator

A regular drill, while capable of drilling into concrete without the hammer function, is typically slower than using a hammer drill. The Adiseal Ultimate masonry drill bit significantly accelerates the drilling process and has demonstrated equivalent speed to an SDS drill bit in tests for drilling into concrete brick without the hammer function.

Regular use of vibrating tools can lead to hand damage, including conditions like vibration white finger syndrome. Drilling without the hammer function decreases hand vibration, thereby lowering the risk of developing vibration white finger syndrome.

Adiseal Ultimate concrete drill bit is a masonry drill bit that outperforms other drill bits in terms of drilling speed and durability when drilling without a hammer function. It drills a variety of construction materials including concrete, brick, masonry, wood and other materials. Drilling hard materials without hammer function gives it numerous advantages over hammer drilling.

Aluminum feed rateformula

We have created an excellent speeds and feeds calculator which incorporates these charts into the calculations.  It generates ranges of SFM or SMM and allows you to decide what SFM is appropriate.  It then automatically calculates the RPM.  Then it gives you a range for FPT and allows you to decide what is appropriate.  Then it automatically calculates the IPM or millimeters per minute (MMPM).  Try it out!  It is easy to understand.

Keep drilling until you’ve achieved the intended depth. Exercise patience and refrain from exerting excessive force on the drill, particularly when working with tougher materials like masonry.

When using a hammer drill, drilling near an edge can easily result in substrate breakage, particularly in hard materials such as concrete and brick. Opting for non-hammer drilling into concrete enhances safety when drilling in proximity to an edge, reducing the risk of material breakage.

Intermittently retract the drill bit to clear any gathered debris. This action prevents overheating and ensures a clean hole.

Note:  These cutting feeds and speeds charts work with Accupro, Niagara, Data Flute, SPETool and all end mill brands.  We will have all of Harvey Tool speeds and feed charts loaded soon.