Beveling Base Starter Kit creates a precise edge whether mitered, beveled or straight Creates A Precise Edge Whether Mitered, Beveled or Straight Transforms Any Polisher or Variable Speed Grinder Into a Precision Straight and Beveled Edge Polishing Tool Perfect On All Materials Including Sintered Slabs and Thin Porcelain Panels Contractor's Choice for Seamless Countertop Installations Precision Grinding for Perfect Mitered Edge for Lamination High-Quality Polishing Results Cost Savings When Compared to Expensive Machinery Designed to fit Various Polishers/Sanders/Variable-Speed Grinders with 5/8"- 11 Spindle Exterior Water-Feed System Included Kit Contains: Beveling Auxiliary Base, Carriage Assembly, Guide Rail Set (4', 7', 12') & Surface Protection Tape Item Quantity BAB1590 Beveling Auxiliary Base 1 BAB1590 Standard Accessories 1 BAB Carriage Assembly (BAB-CASM) 1 Guide Rail 4' (1.2m) (ASC-GR04) 1 Guide Rail 7' (2.1m) (ASC-GR07) 1 Guide Rail 12' (3.6m) (ASC-GR12) 1 Surface Protection Tape (BAB0650) 1