Marcrist Launch the Ultimate Toolbox Hero

Marcrist International, the Doncaster based Diamond Tool experts are launching their latest line of high quality trade tools.

The MM850 is a multi-material drill piece, purposely designed for the materials which are predominantly drilled by fitters, plumbers, builders, tilers and electricians.

Karl Lycett, Product Manager for Marcrist International said “The drill piece has been designed to save the tradesman time and money and still produce the Marcrist Quality. The piece can easily drill into Brick, Stone, Plaster Board, Concrete, Wood, Breeze Block, Aluminium and PVC plastic common materials tradesmen encounter, without the need to keep changing machines and drill pieces”

With exceptional performance the MM850 will be the leading multi-material drill on the market at a competitive price, the drill piece benefits from a self-centring tip to reduce any slippage on the material during drilling as well as producing a precision hole at speed.

Part of the Marcrist AkkuMAX range, the drill piece is designed for corded and cordless drills, with or without percussion, preventing the need to change not only drill pieces for different materials but also the machine. The double shank supports conventional chucks with its Rounded shank as well as a Hex shank to reduce slipping in the chuck during drilling.

Karl said “we recognised the need for the local tradesman to have a single drill piece that would drill multiple material. Tradesmen may very well have to drill several materials during jobs at the same time, instead of having to replace drill pieces for each material the MM850 alone will do just the job. That’s why we are calling this the Ultimate Toolbox Hero.”

The MM850 is available now in a range of sizes from Ø5mm to Ø14mm and also available in a five-piece multipack.  

For more information, visit:

Tel:+44 (0)1302 890888

Email: [email protected]

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:


Strike a Pose with Carl Kammerling’s Blue Steel

Strutting its stuff in product innovation, Carl Kammerling International has launched C.K Blue Steel Impact Bits, designed to meet growing demand for impact drills.

Making its toolbox debut, the C.K Blue Steel Impact Bits have been manufactured from exceptionally tough, specially formulated V8 alloy steel, providing a vastly extended working life compared to standard screwdriver bits.

With impact drills combining much higher rotational torque than traditional drills, the C.K Blue Steel Impact Bits feature torsion control technology to withstand the stresses of high torque applications, resulting in less bit breakage.

Understanding that durability, accuracy and strength are key requirements for professional results, the C.K Blue Steel Impact Bits have been designed to dramatically increase speed and productivity on the job and provide unparalleled performance.

Graham Godfrey, C.K tools brand manager commented: “Carl Kammerling continuously looks to develop its product range for the benefit of the end-user. We have witnessed a rise in popularity of impact drills among our dedicated focus group of tradesmen, who expressed a need for durable impact bits that would guarantee performance."

“By introducing the C.K Blue Steel Impact Bits we hope to highlight our continuous commitment and support to both our stockists and tradesmen.”

For further information please visit or call 01758 704704.

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