Features 2 in 1 Design Combines a precision reamer and chamfer tool in one allowing you to restore tolerance and add a clean chamfer to 20mm dog holes in a single operation Premium Materials Machined from S136 stainless steel with HRC60 hardness for exceptional durability and corrosion resistance featuring a solid tungsten carbide chamfer cutter with four adjustable cutting sides for extended service life 4 Flute Reamer The reamer portion features a gentle lead infour cutting flutes precisely enlarging tight dog holes to ensure 20mm dogs fit snugly without wobble while remaining easy to remove Edge Protection Removes sharp edges around dog holes preventing damage to the work surface from repeated insertion of dogs clamps and other accessories Specifications Shank Size 9mm HexReamer Material S136 Stainless Steel HRC60 Blade Material Solid Tungsten CarbideNumber of Flutes 4Suitable For 20mm Dog Holes in MDF HDF Melamine faced Plywood Hardwood Veneer Plywood and Hardened MDFPackage included 1 x Reamer