Diamond Blades for Abrasive Materials

Our black diamond blades are our hardest bond for cutting abrasive materials like asphalt, natural limestone, cinder blocks and green (uncured) concrete. They have undercut protection using an "R" segment (undercut protection reduces the chances of the blade biting or kicking back, or segments coming off) and uses 10mm diamond asphalt bond segments. These blades are ideal for use on quick-cuts (handsaw) or floor saws.

Our Premium asphalt blades were originally developed for dry cutting in the US market, so are tough and durable.


From $95
See here


Diamond Blade Perth 14"/350mm ($225 ea incl GST)
16"/400mm ($250 ea incl GST)

With "R Series" Full Radius Undercut Protection. This Trade series Diamond blade is widely used by all trades because it offers a lot of bang for your buck. It is also used for cutting natural limestone and green concrete on quick-cuts (handsaw). This diamond blade is also handy as a wall chasing blade.

1"/25.4mm centre


Diamond Blade Perth




14"/350mm $330 ea incl GST

16"/400mm $350 ea incl GST

18"/450mm $450 ea incl GST

Our Premium series diamond blades are made in Korea . The "R Series" Full Radius Undercut Protection makes it one of the safest blades to use on the Australian market.  It is also used in the Limestone industry on quick-cuts (handsaw), and also by the professional cutter on very abrasive products like green concrete. This diamond blade is also handy as a wall chasing blade, although we do recommend our wall chaser blades if this is your main use.
1"/25.4mm centre

5"/125mm blade does not have undercut protection, but is ideal for getting into those fiddly areas your big blade won't reach (22.23mm/20mm centre).

All UDT Asphalt diamond blades come with with "R Series" Full Radius Undercut Protection.


Asphalt blades - suitable for these machine types:


Floor Saw


Brick Saw


Hand Saw

Prices correct as of 1/1/24 but subject to change. All prices are each and include GST.

Silica dust - when workers cut, saw, crush, drill, polish or grind products that contain silica, particles are created, which are one-hundredth of the size of a grain of sand. These can get  stuck deep in the lungs. 
Ensure precautions to limit exposure to dust are in place.
See the WA government's info on silica dust here.

Please see our Contact Us page for Australia wide delivery information.

Disclaimer: the information on this website is provided in good faith and believed to be reliable and accurate at this time.
However, the information is provided on the basis that the reader will be solely responsible for assessing the information and its veracity and usefulness. UDT shall in no way be liable, in negligence or howsoever, for any loss sustained or incurred by anyone relying on the information, even if such information is or turns out to be wrong, incomplete, out-of-date or misleading.

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United Diamond Tools

U9, 84 Barberry Way
Bibra Lake
Western Australia 6163

Telephone: (08) 9434 6878

Email:  sales@udt.com.au