5Pcs Step Drill Bit & 5Pcs Countersink Drill Bit Set, Titanium Coated, HSS Step Bit, 50 Sizes of Step Bit for Metal with Aluminum Case, Multiple Hole Stepped Up Bits for DIY

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About This Drill Bits Set: This unit step drill bit includes 5 step bit in sizes 3/16-1/2'', 1/8-1/2'', 1/4-3/4'', 3/16-7/8'', 1/4-1-3/8'', effectively replacing 50 sizes of conven tional drill bits. Along with a center punch. Additionally, the counter sinker drill bit set in sizes1/4'', 3/8'', 1/2'', 5/8'', 3/4''. Premium Quality: AIMLENTOOL drill bits are made of high speed steel for longer cutting edge life even at extreme temperatures. Step drill set with a titanium coating significantly improves durability and sharpness for less friction and cooler operation,performs well in heat, corrosion and rust resistance. Craft Design: Counter sinker drill bit set very suitable for sinking 90° holes in wood and soft metal countersunk screws and fasteners. Step drill with 118° split tip and double groove design, increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily. Widely Application: Our step drill bit with its powerful drilling capability, can process different diameter holes, and can be used on materials such as metal, iron, aluminum, brass, plastic, aluminum alloy, wood, plastic, etc. Suitable for a wide range of household projects. Easy Storage and Organization: The drill bit kit is packaged in a sturdy and compact aluminum storage case with a foam layer inside, which can maintain the order and protection of the drill bit, reduce wear, and make it an important supplement to the toolbox. Overview Material : Cobalt Steel, High Speed Steel (HSS) Finish Type : Titanium Nitride Shank Type : Straight Brand : AIMLENTOOL Tool Flute Type : Straight Show more