There is a small diameter drill on the tip and the second stage of the circumference blade is cut endmill so there is a clean hole that does not crack even thin plates or plastic resin; The new drill is combined with the center ring drill and end mill allow for cutting at twice as fast as possible for high efficiency; Cutting Material: Aluminum, steel, resin, etc. Rivet underhole, pipe, H type steel, thick plate / Blade diameter: 0.0.0.0.0.0.0.0.0.0.0.0.0.04 inch (1 inch (1 mm) 0.1; Groove: Length: 3.9 inches (98 mm); Total Length: 5.3 inches (133 mm); Shank Diameter: 0.4 inches (10.1 mm); Effective Processing Depth: 3D (Blade Diameter x 3 Times); High Speed Steel (HSS).
●先端部に小径ドリルがあり、二段目に円周刃がエンドミル切削をするため、薄い板物やプラスチック樹脂でも割れることなく、裏バリが出ないきれいな穴があきます。
センターリングドリルとエンドミルの組み合わせによる新型ドリルで送り早さが2倍のスピードで切削が可能となり、高能率化ができます