What does sds in tools mean?

SDS in tools stands for "SDS Plus" or "SDS Max," which refers to a type of shank design used in rotary hammers and drills. SDS stands for "Slotted Drive System" and allows for quick and easy bit changes without the need for a chuck key. The design also provides a better grip for the bits, enabling more efficient drilling and chiseling in hard materials like concrete and masonry.