CRACK CHASER The  "V" Style Crack Chaser efficiently widens existing cracks and provides an ideal groove for sealing preparation. The high percentage of diamonds in the matrix provide for excellent speed and long wheel life. Use Wet or Dry *12MM Segment Height for Long Life* Usage: CONCRETE, GREEN CONCRETE, HARD CONCRETE, BLOCK, PAVERS, STONE Quality Level: PREMIUM DIAMETER     RIM THICKNESS    SEG. HEIGHT        ARBOR       8"                           .375"                      12mm                    7/8"-5/8"