It took nearly two years of refinement & design optimization to improve our best-selling "G1023S" series table saws. The result is our new line of "G1023R" series table saws, featuring all the best from the old models plus a new riving knife system, serpentine-belt power transfer that runs quieter & smoother, encapsulated dust collection around the underside of the blade, & an improved quick-release blade guard. CSA certified meeting CSA C22.2 #71.2-08 and UL 987-7th standards!