3 Answers

SDS (Special Direct System) Drills are extremely powerful and used when extra power is required, for heavy duty jobs. They have three basic functions that allow normal drilling, hammer action and chiselling. Furthermore, SDS Drills can hold large diameter drill bits well passed the 13mm diameter limit of normal drills. Professionals tend to select this type of drill for major projects.
However, SDS Drills tend to by heavy compared to ordinary drills which means they are unsuitable when working up a ladder or for small jobs such as light drilling - when a small power drill would be suffice.

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8 years ago. Rating: 5
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An SDS Drill has a special chuck that will only take slotted SDS drill bits.Unlike normal drill chucks that are tightened around the bit SDS bits simply plug in.They are normally used in masonry hammer dill applications.

8 years ago. Rating: 3
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In the Seventies, It used to be called   " Students for a Democratic  Society "  Their drills were more like riots .

8 years ago. Rating: 0
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