XA2-1 SDS Plus shank arbor with carbide tipped pilot drill. SDS-Plus arbor shanks allow the arbor to be used in SDS-Plus rotary hammer drills, with the hammer action turned off. Quick-Hitch arbors feature two locating pins inserted into the hole saw cap to prevent the hole saw overtightening on the screw thread. This allows easy and instant hole saw changes, without tools and without removing the arbor from the chuck.