Description
Two professional duty step-drills in popular sizes, up to ½ by 32ths and up to ¾ by 16ths | Titanium Aluminum Nitride (TiALN) for extreme heat and wear prevention, not just a decorative coating like most step drills | Unique formulation continually replaces itself with a clear oxide wear preventative coating as it wears away from use | Double fluted design for perfectly round holes with shapr cutting angles to quickly drill through everything from sheet metal to ½ thick plateThe Astro Pneumatic Tool 9442 Blue Steel 2-Piece Max-Duty Step Drill Set is the ultimate multi-purpose max duty option for professionals. Including the two most popular automotive sizes (up to ½ by 32ths and ¾ by 16ths) these 3-flatted shank step drills feature Titanium Aluminum-Nitride for the greatest possible heat and wear prevention. This unique formulation replaces itself with an additional clear oxide wear preventing coating when worn away after extended use. Together with a double fluted design for clean round cuts, this set is made to laser through everything from sheet metal and stainless to ½ thick cold formed plate.
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