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  • #16
    Re: What does SDS stand for? Mean?

    SDS and SDS plus are basically the same, minor improvements in the tooling of the bit drive, but are 100% compatitble. SDS MAX is different however, it is like the "big brother" of SDS, same concept, larger diameter.



    • #17
      Re: What does SDS stand for? Mean?

      Standard Drilling System, a Bosch design.
      Bosch uses a 4 spline design and hilti originally used 2 slots, the bosch would work in Hilti but not vice versa. Most companies now use the sds system but not all of them use all 4 slots to drive the drill bit.


      • #18
        Re: What does SDS stand for? Mean?

        I've got Bidan - plastic seat with cover and warm water:


        • #19
          Re: What does SDS stand for? Mean?

          Originally posted by Evil Gopher View Post
          At work we were talking and the ?? came up....what does the SDS terms of 1" L-Shape SDS Rotary Hammer Drill. I looked around the net and found nothing....just diffrent companies listing SDS hammer drills.

          Thanks all.
          Q: What do "SDS, SDS-MAX and Spline Shank" stand for?
          A: SDS stands for Schnell Drilling System or Slotted Drive System. All modern rotary hammers use one of three types of bit: SDS, SDS-MAX, and SPLINE SHANK.
          SDS is also and confusingly called "SDS-Plus" and often written "SDS+". They are all the same SDS shanks are slotted and have curved recesses all of which lock nicely into the chucks of "SDS rotary hammers." They are the smallest of the three shank types, so the biggest diameter SDS bits you'll find are about 1-1/8 inch.
          SDS-MAX is the "super colossal" version of SDS-Plus. SDS rotary hammers drill and pound bigger holes (up to 2") with longer bits (up to 28" or so). SDS-MAX hammers have lots of power, so not only is the hammer drilling faster, the chipping function is extremely useful. Most of these large rotary hammers, however, cannot be used as plain drills like their smaller (SDS+) cousins. They have just two "modes": "hammering with rotation" or "hammer only," and the same is true of almost all Spline Shank hammers.
          Spline Shank is a bit more confusing because the drill bits for this system have a different-looking shank than the chisels. The drill bits have fins (or "splines") at the end of the shank while the chisels and other hammer tools have a hex shank with a deep indent on one side for the lock. But if the bit says "spline," it is, and it'll fit these tools.