What is the difference between SDS & masonry drills?

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SDS or Masonry Drill?

SDS (slotted drive shaft) is a professional drilling system which requires both an SDS drill and bits, it is superior because of the speed at which it is possible to change bits and still get a strong positive drive. One downside is, if you fail to keep the bits clean and lightly greased it can cause chuck failure. The drill bits have a distinctive slot on the shank. A battery SDS drill of good quality gives amazing performance!

Standard masonry drills are used by both DIY and professional alike. Again a standard masonary drill is required to match the bits. These bits have a straight shank and can be purchased at a lower cost. Downsides to this system is the possiblity of the bit slipping inside the chuck when under pressure and many standard drills have a key operated chuck which can be time consuming. This problem has been tackled recently by the introduction of the 'keyless chuck' but is much better suited to the battery operated tools such as the 'drill driver' or 'screwdriver'.

The final choice is usually personal preference and cost driven!

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