DART PCD Blades – Tough & Long Lasting!

Why PCD?

PCD is a polycrystalline diamond, manufactured by sintering together carefully selected diamond particles at a very high temperature and pressure in the presence of a solvent/catalyst metal. The result is an extremely tough inter grown mass of randomly orientated diamond crystals bonded to a tungsten carbide substrate. PCD, therefore can be regarded as a composite material which combines the hardness, abrasion resistance and high thermal conductivity of diamond with the toughness of tungsten carbide.

Polycrystalline is ultimately an extremely hard material – harder than tungsten and carbide, so will outperform a TCT blade by up to 50 times life wise.

Another advantage of the DART PCD blade is that it creates very little dust unlike the abrasive discs often used, as it produces a shaving rather than a powdery dust, even in cement board.

 

When is PCD used?

Correctly applied, PCD tooling replaces existing tool materials such as HSS or tungsten carbide. With the rise in use of wood substitutes (such as wood composites and plastic woods) for future house building in the construction industry – the traditional TCT Blade struggles to cut many of these new materials – leaving an untidy, unattractive cut and the need to replace the blade frequently. This is where the PCD Blade can be seen as a must in any building or timber merchants, as it offers the user an effortless, clean cut in a huge variety of ultra-hard materials. Just to name a few - it will cut through cement fibre board products, such as Marley Eternit, HardiePlank, ‘No More Ply’,  MDF and Corian, as well as laminated and melamine surfaces, GRP, softwoods and hardwoods, plywood and chipboard.

How do they compare cost-wise?

The cost of a PCD Blade can be up to 10 times more expensive than a TCT Blade – but there are extra considerations to take into account. When cutting through certain materials, the user often needs to change a carbide blade daily, while the polycrystalline can last up to 50 times longer – so there is little doubt that the initial cost factor is far outweighed by the extended tool life. In addition, this doesn’t take into consideration the cost of having machine downtime and the time-savings associated with using a PCD blade.

DART Tool Group is a trusted and reliable supplier of PCD blades. With a range of sizes starting at 160 mm and going up to 300mm, with 4 to 8 teeth and an extra-large gullet design, which minimises dust and improves removal of material – you can be guaranteed a smoother, cleaner and more accurate cutting– if you haven’t considered PCD yet, then now is the time!

DART…The Serious Alternative.

Visit https://www.darttoolgroup.com/circular-saw-blades/diamond-pcd-blades for more information.

Peter Brett’s view

I tried the DART PCD 250mm diameter saw blade on12mm thick cement board. The resulting cuts were very accurate and clean – almost planed clean, making the job of joining them accurately easier. My experience of it is that it cuts the board like a knife through butter with very little effort or noise.

The blade sent for the test had just six teeth, spaced about 130mm apart on the periphery of the blade. Each of the teeth has a peppering of PCD particles on it that you can see through a magnifier but not really with the naked eye. There is a large depth-limiting chunk of blade directly in front of each tooth followed by a series of three smaller rounded bumps that serve to clear out the dust as quickly as possible. In comparison to a normal TCT blade, the dust and swarf is incredibly little – due to the lower number of teeth.

There are also six noise reducing slots cut into the blade that dispel heat and therefore reduce or eliminate heat distortion. The blade is a mere 2mm thick and does not cut a thick kerf – reducing drag and friction. I guess some of the smaller diameter blades in this same DART series would be usable in cordless saws as a result. 

DART - Why Use SDS+/SDS Max Hammer Drill Bits?

Do you know what SDS actually means?

Apparently there are a number of claims for what it actually stands for, but the commonly most accepted is ‘Slotted Drive System’, although with its German background, it is probably most likely to originate in the phrase ‘steck, dreh, sitzt’ which translates as ‘insert, twist, fits’. So, the ‘Slotted Drive System’ means that SDS drill bits have slots at the end of the shank which fit into the chuck of the SDS drill.

These slots allow the bit to be pushed forward by the hammer action of the drill, whilst being retained by the drill due to 2 sprung ball bearings that lie in the slots of the drill bit. This is different to the standard drill chuck system where three arms grip the round drill bit.

 

So what is the benefit of using an SDS drill bit?

Well, as the hammer action of the SDS+ drill is driven by the piston firing the drill bit forward and pulling it back, there are a number of benefits. These include:

  • Increased strength of the hammer action of the drill
  • Reduced friction inside the drill
  • More efficient use of energy
  • No need to lean in hard on the drill to get it to work efficiently

What is the difference between SDS+ and SDS Max? SDS Max drill bits are for larger applications and are much larger than SDS+ drill bits. They are considered the ‘heavy duty’ alternative and used largely for big construction masonry/concrete work. They are not compatible however with SDS/SDS+ bits.

DART offers a wide range of SDS+ and SDS Max bits. In fact the SDS+ range includes over sixty sizes and offer excellent wear resistance for drilling in masonry, concrete and hard materials. The carbide tip with special centring point boosts accurate drilling while the toothed carbide tip guides the drilling dust directly into the flute. The SDS Max Drill Bits have an X-form 4 carbide tip, making it suitable for re-bar.

To find out more, visit:  https://www.darttoolgroup.com/sds-drill-range

 

DART Red Ten Delivers on Diamond!

The DART Red Ten range of diamond blades and cores is a highly respected brand, known in the market for quality and performance. 

The range offers a blade for every user application; whether cutting through hard, medium or soft materials.  From the Concrete/Universal Blades which can be used to cut through hard materials, natural stone, clay, engineering bricks and metal to ceramic or Tile cutting blades for porcelain, ceramic tiles, granite and marble, Red Ten has it covered. 

New additions to the range are the Abrasive Blade for cutting abrasive materials, concrete and asphalt and also a specialised Asphalt Blade for extremely abrasive materials, including cement screed and lignacite blocks.

Included in this range is also the popular and unique Mini Diamond Porcelain Drill which has a proven record of high speed, continuous multiple hole-cutting. The drill requires no guiding, minimal coolant, and fast easy waste ejection, with a very high grade exposed diamond to allow for the fast, smooth cutting. It can handle cutting through very hard tiles, porcelain, ceramic, granite, marble, glass, slate and stone.

If it’s Dry Core Bits you need for drilling through masonry, brick and concrete, DART Red Ten offers over twenty sizes, ranging from 22mm up to 200mm. The spiral barrel design draws dust away from the cutting edge, increasing speed and life of the diamond tip, while the V Groove Tip increases the bite and cutting speed of the core. The DCD/Spiro cores also come in a 5 piece kit, which includes five sizes of cores, a Hex and SDS Adaptors, taper drill, drift key and all in a heavy duty case.

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DART – DELIVERING A SERIOUS ALTERNATIVE

The TROY Means Business Show provided a perfect platform for DART Tool Group to also show their customers that they ‘mean business’! A relatively new brand in the power tool accessories industry, the company is growing in double figures year on year, and the message is simple – they offer a ‘serious alternative to leading brands, at a more affordable price’.

DART has an unrivalled position in the market, providing a portfolio of products under one brand, including the DART accessories range; the highly respected DART Red Ten professional diamond blades; the DART NailMaster brand; and the DART Handmax range of gloves, providing customers with a single-source supplier for all their needs.  DART is a brand born in Germany and holds the ISO 9001 accreditation, priding themselves on providing defect-free products on time and within budget. There is no doubt that DART products can complement and extend a trade counter offering – this can surely only add to incremental sales! 

Anyone at the Troy Show will have also met DART’s special guest - the company mascot ‘Henry the Holesaw’, based on one of the company’s flagship products, the Premium Cobalt Bi-Metal Holesaw. Boasting the largest range in the industry, with sizes from 14 to 210mm and 8% cobalt for extreme resistance and long life, the product is quoted as ‘outlasting other leading brands by up to 3 times’.

DART – DELIVERING A SERIOUS ALTERNATIVE

All DART’s products are available online via their recently re-launched website which offers customers personalised login, fast and simple ordering and full visibility of account history. See www.darttoolgroup.com for more details.

Dart Angle Driver – Popular and Award Winning too!

WhyBuy?

  • Handy
  • Well priced
  • easily adjustable
  • well made
  • could get you out of a spot

In many drill driver kits these days an angle driver head will be included. Belatedly, in some cases, we have woken up to the fact that not all screwdriving is a simple straight line function. Sometimes we have to work at very odd angles and around corners and in tight spaces, and the angle driver, in very many cases, allows us to do just that. In fact, I chose to purchase a particular brand of small combi drill on the basis that it was the only one, at that time, that came with a quick release angle driver and chuck. Frankly one of the best decisions I have made in tool purchases because I have used it more often than I thought I would.

So the market was crying out for a well made angle driver that could be simply mounted in a standard chuck. DART Tools, masters at sourcing tools, stepped in, and so popular has its angle driver been, that it won the Innovation Award at the Torque Expo Show in October 2016. It was chosen by the visitors – who represent a wide range of trades and businesses in the fasteners and fixings industry.  

What the voters could clearly see was that the angle driver is very well engineered and its angle gearing works smoothly – so it is a high quality 90° extension to the normal Driver Chuck.

Any close examination of the driver will reveal that it is satisfyingly heavy – so enough metal has gone into its construction for it to be robust enough to withstand trade use. The outer casing of cast alloy has been well finished and is smooth to the touch. To mount it up for work, all the user has to do is attach the hex end of the driver to a chuck (it could also be one of those chucks mounted on a flexible drive cable) and find the angle that they want to drive at before tightening it.

Again, the hex end is strong and capable of delivering the maximum 57Nm of torque that can be put through the gearing.

At the driver end is a small spring-collared and magnetic bit holder. Since this is a standard fitting there is no reason why the user couldn’t customise usage by mounting drill bits, etc, from one of the comprehensive hex bit sets available from many manufacturers.

An absolute necessity in my view is the small handle attached to the driver. This is adjustable into three positions, so that the user can maximise its potential. In my experience it was very handy to be able to use the handle to guide the screwdriver bit onto the screwhead, and then apply some pressure to keep it there while driving it home. A nice touch is that the top of the handle can be unscrewed revealing a compartment just big enough for a spare driver bit – how often have I needed one of those!

The angle driver can be used at speeds up to 2000 rpm even though screwdriving will be done at much slower speeds – but it does allow the option of using drills and even small cutters and burrs mounted on a hex shank.

A neat idea, neatly realised, and one that will be a very useful solution to many screwdriving dilemmas.

As one happy customer remarked, “This product is designed to enable me to screw or drill in that impossibly tight position where no other could - it has saved me from failure many times”

 

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