Cutters Stainless Spring Design 16 50Mm Review

* Outside Diameter Size: 16mm, 18mm, 20mm, 22mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm ; 10 Pcs of different diameters satisfies your different request. * High Quality: These drills is made of 6542 high resolution steel. High density and heat treatment with high grinding, hardness, toughness, high concentricity, wear resistance and long service life. * Wide application: Can be used in electric drill and gadget machine. Suitable for steel plate, iron plate, stainless steel and all kinds of thick materials. The maximum punching, The depth is 5mm. * Each edge is a part of the features of the cutting work, making the hole difficult to produce the phenomenon of collapse, chip detection, with excellent performance, sharp edge, wear-resistant. * Perfect Design: Spring design facilitates chip evacuation. Using the edge part is extremely difficult to generate flaking, three forms of cutting the combination of the blade. With hex keys, you can use the most comfortable and convenient.