HSS Step Drill Bit Set - 3PCS 1/4" Hex Shank Titanium Coated High Speed Steel Ho

【Package Included】 3-Piece HSS Groove Step Drill Bit Set . 1/4 Hex shaft drives are suitable for all kinds of for home DIY power drills.【Material】 Made of high speed steel with titanium coating, ensure our step drills’ Durability. This also proves the capability and durability of the drill to last through multiple drillings on surfaces such as: plastic, aluminum, copper, stainless steel, and so much more.【Easy Drilling】 Two-fluted provide small pressure and make your drilling faster and smoother , a step drill can be used in a variety of hole sizes. High-step design allows you to stop and won’t drill big!【SET INCLUDES】 Bit #1 (6 steps): 3/16 inch-1/2inch (3/1 6inch, 1/4 inch, 5/16 inch, 3/8 inch, 7/16 inch, 1/2 inch); Bit #2 (9 steps): 1/4 inch - 3/4 inch (1/4 inch, 5/16 inch, 3/8 inch, 7/16 inch, 1/2 inch, 9/16 inch, 5/8 inch, 11/16 inch, 3/4 inch); Bit #3 (13 steps): 1/8 inch - 1/2 inch (1/8 inch, 5/32 inch, 3/16 inch, 7/32 inch, 1/4 inch, 9/32 inch, 5/16 inch, 11/32 inch, 3/8 faultless for everyday use. superior materials and excellent craftsmanship ensure long-lasting durability.