Mini Groover Packer Brothers Concrete Grooving Grinding Machine We custom build Walk Behind Mini Groovers up to 20" Some sizes we have built 6" 8" 10" 12" 13" 16" 18". Built to order with customized spaces between the groove. This mini grooving machine makes the texture lines in cement to prevent slipping. Commonly used to provide non-slip textured surfaces in cattle barns, around swimming pools, bridge decking, and more! Power Options: Gas, Electric or Diesel