What does SDS+ mean in a drill?
I happen to know this. SDS stands for "Special_Direct_System", which is said to have been invented by BOSCH, followed by inches, usually representing diameter, with 4 tunnels and 5 tunnels designed to be represented by X4 or X5.
Also useful plus or max, SDS+ (SDS plus) said the four hole round handle drill, SDS Max said the five hole round shank drill, you think, the drill bit is fixed with 3 tunnel, a tunnel called plus, 5 very close, almost no room, so it is indicated by Max.
