Diamond Core Bits and Blades: What makes them cut faster and last longer?

What makes Diamond Core Bits and Blades cut faster and last longer?

To select blades or bits for cutting concrete, a contractor doesn’t need to know how they are made, but should know how they will be used, meaning the type of concrete to be cut and the machine being used to cut it. A manufacturer of concrete cutting equipment can then recommend a blade or bit that will match the concrete and the machine.


Diamond bits and blades are made by brazing diamond segments to the end of a steel tube or the perimeter of a steel disc. Each diamond segment consists of several diamond particles held together by a metal bond. To make segments that will cut different types of concrete, manufacturers vary the composition of this metal bond and the type, size and concentration of diamonds. Most contractors prefer to use wet-cutting diamond blades whenever possible, because the water used to cool the blade also eliminates dust. The slurry that’s produced can easily be vacuumed up.


Type of Aggregate–Hard aggregates shorten blade life and slow the cutting rate, so cutting concrete with a hard aggregate such as quartz will cost much more than cutting concrete with a soft aggregate such as limestone. Size of aggregate is also important.

Reinforcing steel–It costs more to cut concrete that contains reinforcing steel because blade life or bit life is shorter and cutting rates are slower.

Operating speed–To keep blades from distorting at high speeds, they are manufactured in the form of a dish that will straighten when the blade is rotated at optimum speed. If the design speed is not achieved, the blade will tend to wander as cutting commences.

Depth of cut–Making deep cuts will generally cost less than making two or three shallow cuts. By Mark Wallace

3 Tips for Choosing the Right Diamond Saw Blade

Choosing the right diamond blade can mean the difference between an efficient, cost-effective, profitable job or one with additional costs and downtime. Knowing how to select the right blade for the right machine that is designed to cut the right material can save time, money and increase profits. Owners should ask themselves these three basic questions when choosing a blade for a project and use this knowledge to correctly bid on projects as well as minimize the chances of troubleshooting blade issues.

1. Which materials are you cutting?
Correctly identifying the material to be cut directly affects the cutting speed and the life of the blade. Most blades are designed to cut a range of materials, which is limited by the hardness of the bond and the diamond quality used. However, for maximum performance, the blade should be matched as closely as possible to the material it will cut.

When cutting concrete, asphalt or green concrete, it is important to know what makes up the material. Knowing the type of aggregate within the slab is your best bet at finding a blade optimally suited to cut it. You can determine what is in the slab by observing and looking to see what aggregate is used, or by using a Mohs test. A Mohs test helps identify the hardness of the aggregate, which can help determine what type of aggregate you are up against. Most diamond blade manufacturers will specify which of their blades either cuts a particular type of aggregate (flint, river rock, limestone or abrasive sand, for example) or will list aggregate categories (hard, medium or soft). These aggregate and material charts will help narrow your blade selection to only the blades that will cut that particular type of aggregate.

2. What type of equipment are you using?
Knowing if you will be using a 5-hp power cutter or a 70-hp flat saw will impact blade choice dramatically. The size of the blade acceptable to use on the saw, the ability to use a wet or dry blade and the rpms needed to spin the blade all depend on the equipment.

  • Blade size—Blades are engineered to be used on specific equipment. It is critical to select a blade that can be run on the equipment you plan on using.
  • Wet or dry blades—Most equipment will have the ability to use water, but there may be a time when water can’t be used or isn’t available.
  • RPMs—If a blade is run too fast or too slow, the blade will not work effectively and a loss of tension or excessive wear on the blade could result. Blades should list a maximum safe speed in revolutions per minute at which a blade can be used. Before using any blade, make sure the blade shaft (arbor) speed or the tool is within the “maximum safe” limit of that blade.

3. How deep are you cutting? 
Knowing how deep you need to cut on a particular job will help you select the right blade diameter. Maximum cutting depths listed on blade packaging may vary from what it actually cuts in the field. Actual cutting depth will vary with the exact blade diameter or saw type or the exact diameter of the blade collars (flanges). Cutting depth will also be reduced if saw components (motor housing and blade guard) extend below the blade collars.


If all else fails, just call us we have knowledgeable staff ready to help you!  1-800-211-0592.

Husqvarna K760 Saw Deal – 12 Turbo Diamond Blades included! LIMITED TIME


Husqvarna K760 Package Deal includes…

The is the a great replacement package that includes one of the worlds premier cut off saws and 12 premium quality turbo segmented diamond blades. The price is all inclusive to your door if you live in the Continental United States.
International Shipping is available with additional charges. Must call 800-211-0592 and speak to one of our reps.

The Husqvarna K 760 has long been a highly popular all-round power cutter among construction workers and landscapers. By improving a number of large and small details, we’ve made the machine even more powerful, efficient, reliable and comfortable.

Husqvarna K760 Package Deal with 12 Diamond Blades

14″ Strider Turbo Seg. diamond blades are an all purpose diamond blade featuring the latest sintered technology and fast cutting speed. 12mm High Turbo Segments allow for faster cutting performance. The 14″ Strider Turbo Seg diamond blades deliver optimum performance and good blade life. These diamond blades are used with angle grinders, circular saws, high speed power saws and masonry saws for general purpose material, masonry, and soft concrete. These blades may be used dry and wet.


Merry Christmas / Feliz Navidad / Feliz Natal / Boun Natale

At this #holiday our thoughts turn gratefully to those who have made our progress possible!

Thank you!  Customers, Co-workers and Friends for helping us make it a banner year at Diamond Tools Warehouse.

In this loveliest and happiest of seasons, may you find many reasons to celebrate. Have a wonderful Christmas!

#merrychristmas #feliznavidad #feliznatal #joyeuxnoel#froheweihnachten #sengdanfailok #bounnatale #chagmoladsemeach#UKhisimusiomuhle #EidMiladMajid #Krismasasyashubhkaamnaa#ChristmasMobArak #NizhonigoKeshmish #you

Diamond Tools Family
Merry Christmas

Diamond Coring Bits

A core drill is a drill specifically designed to remove a cylinder of material, much like a hole saw. The material left inside the drill bit is referred to as the core.

Core drills used in metal are called annular cutters. Core drills used for concrete are generally called Diamond Core Drills and are water cooled. For drilling masonry, carbide core drills can be used.

Diamond core drilling is a high-speed, high-production method of drilling in concrete, stone, asphalt or masonry structures. It is fast, safe, quiet and does not cause impact or vibration damage to the immediate surrounding structure. Diamond core drilling minimizes spalling, eliminates fractures and doesn’t transfer vibrations to the surrounding structure. The clean, straight openings require no patching or other cosmetic repair and allow the next operation to be installed or carried out without further delay. Core drills cut easily through rebar, allowing the holes to be placed wherever it is most suitable. Holes of almost any diameter up to 60 inches are easily drilled to make openings for plumbing, electrical and HVAC installations.

Diamond core drilling is so called because it uses a ‘diamond bit’. This drill bit is composed of group of small, industrial grade diamonds set into a metallic, soft matrix. As the ground is drilled, this matrix will wear away and expose more diamonds.

Wet Core Bits

Drilling of concrete, masonry and brick, including concrete with soft to hard aggregate and light to medium steel reinforcing, also effective on granite, marble and stone. Dry Bits are for drilling brick and lightweight block or concrete block materials. Sizes available from 3/8″ to 14″ in diameter.


Dry Core Bits

Drill dry through block and brick in seconds. No water needed. Sizes available from 1″ to 6″ in diameter.


We have even more products available, please give us a call.

Including a full line of Made in the USA Diamond Core bits.
USA SQ2 Wet Core Bits are designed with premium grade diamonds for maximum cutting performance and long product life for wet use applications. Premium Concrete Core Bits are laser welded and have a core depth of 14”.
These core bits are made here in the USA and specked out for long life and performance.
Diamond Core Bits are used for core drilling concrete, green concrete, brick, hard brick, clay pavers, pavers, asphalt and field stones. Diamond Core Drill Bits come laser welded. Diamond Core Bits are designed with premium grade diamonds for superior cutting performance and longevity. Core bits are engineered with special barrel vents to allow easy removal of cutting debris.

Diamond Cup Wheel

A diamond grinding cup wheel is a metal-bonded diamond tool with diamond segments welded or cold-pressed on a steel (or other metal, such as aluminum) wheel body, which usually looks like a cup. Diamond grinding cup wheels are usually mounted on concrete grinders to grind abrasive building materials like concrete, granite and marble.

There are various styles and specifications of diamond grinding cup wheels to fit various application requirements. The ones with many big diamond segments can undertake heavy workload, for example, grinding concrete and stone, while those with small or sparse diamond segments are normally used for fast removal of paints, wallpapers, glues, epoxy and other surface coatings.

Just like other metal-bonded diamond tools, the diamond segments on diamond grinding cup wheels can have different bonds, different diamond grits, different diamond quality and different diamond concentrations to fit different uses. For example, if the material to be ground is hard, the bond should be softer, and if the material is relatively soft, the bond should be harder.

Diamond grinding cup wheels are used in different-roughness grindings. For coarse grinding, the bond should be softer and the diamonds’ quality should be higher, because in this case the diamonds are more easily to become blunt. The diamond grit should be bigger, normally from 35 grit to 50 grit. For this is coarse grinding and big grit can improve working efficiency. The diamond concentration can be lower.

For fine grinding (sometimes called “polishing”), the bond should be harder and the diamonds’ quality can be lower, for in this case the diamonds can last longer and hard bond can also help the precision of the processing. The diamond grit is normally between 80 grit to 120 grit, depending on the grinding requirements. The diamond concentration should be higher.

After being ground, the material can be further polished with resin-bonded diamond polishing pads of different diamond grits.

Take a look at our selection of Grinding Diamond Cup Wheels here:


Turbo Cup Wheels
Cup Wheels



Dear Friends,

In this time of gratitude, we give thanks for you. We value your patronage and appreciate your confidence in us.

Counting you among our customers & friends is something for which we are especially grateful.

On behalf of all of us at Diamond Tools Warehouse, we wish you a very Happy Thanksgiving.

Our offices will be closed Thursday November 24th & Friday November 25th, 2016.

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