BOSCH HSD1934 16 in. SDS-max® BlueCollar™ R-Tec Star Point Chisel with Dust Adapter - - Amazon.com
BOSCH HS1828 1-Piece 5 In. x 5 In. Tamper Plate Works with SDS-Max, Spline/Round Hex, and 3/4 In. Hex Hammers Hammer Steel,Silver - Sds Max Tamper - Amazon.com