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Metal Step Drill Bit Set of 5, Cobalt Titanium Step Drill Bits, High Speed Steel Multiple Hole 50 Sizes Stepped Drill Bit with Aluminum Case - Two Flute Design
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About Metal Step Drill Bit Set Of 5, Cobalt Titanium Step
Sheet metal work requires many different sized holes, that means you need to change their drill bits constantly.You can drill 50 different kinds of diameter holes with CHEEMONG one step drill bits, is more simple and practical to meet your needs.CHEE MONG sheet metal step drill bits adopt the high speed steel, also called HSS drill bits, which are made of an extremely hard carbon steel that has a higher heat resistance than high carbon steel.The material of HSS allows the metal step drill bits to be used at a higher drilling speed, and insures that the bits maintain their structural integrity longer.And the bits are coated with titanium for oxidation resistance and extend their lifespan.- Premium high speed steel 4241- Titanium step drill bits set of 5- An aluminium carrying case- Two-flute drill bits clears chips faster- Three-side shank avoid sliding- Please cooling with water when working (Keep its temperature under 25°C)X-type openings design to remove the cutting waste when drilling, preventing iron chips from scattering, ensure sleek & accurate drillingHSS 4241 step drill bits are ideal for iron, aluminum, plastic; not suitable for carbon steel, 18/8 stainless steel, porcelain, ceramic and wallSIZES :1/4" to 1-3/8"(1/4'', 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8")3/16" to 7/8"(3/16'', 1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8")1/4" to 3/4"(1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4")1/8" to1/2"(1/8", 5/32", 3/16'', 7/32", 1/4'', 9/32", 5/16", 11/32", 3/8'', 13/32", 7/16'', 15/32" , 1/2'')3/16" to1/2"(3/16'', 1/4'', 5/16", 3/8'', 7/16'', 1/2'')PACKAGE LIST :5 x Step Drill Bits1 x Aluminum Case
