Feature●For drilling and expanding and chamfering steel steel, copper, brass, stainless steel, aluminum, plastic, wood, etc●Hole Diameter Sizes: 0.2, 0.3, 0.4, 0.5, 0.5, 0.6, 0.7, 0.8, 0.9, 0.8, 0.9, 0.9, 1.0, 1.3, 1.4 inches (5, 7.5, 10, 13, 13, 13, 35 mm)●Drilling Depth: 0.2 inch (4 mm)●Weight: 5.6 oz (166 g)●Material: HSS steel●Highly durable titanium coating●Shank Shape: 0.25 inch (6.35 mm) hexDescription
Groove holes into round holes
For long holes
For enlarging holes
For chamfering
For the bottom holes of wood screws.