Wood Drill, Milled type on professional performance *Brad Point Wood Dril Bit,Milled type for Professionals*CV-steel milled type on hardness of HRC52-59 for professionals*Extra long drilling life on various wood, rough wood, plaster, chipboard, plywood, laminated board, plastic, etc. Item NumberDiameter(mm)Spiral Flute Length(mm)Overall Length(mm)Shank Diameter(mm) ...