Heller 2018 Bionic Pro SDS-plus Hammer Bits - Heller 156530, This 25 x 450 x 400mm Bionic Pro SDS-plus hammer bit from Heller has rounded cutting edges and an innovative spiral design which provides efficient removal of drilling dust. Heller 15653 0 2018 Bionic Pro SDS-plus Hammer Bit 25 x 450 x 400mm - Single
