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The IMPORT BDNA-20870 is a 26-piece jobber length drill bit set covering the full letter series from A through Z. Each bit is machined from high speed steel with a gold oxide finish that provides light lubricity and helps resist heat buildup during cutting. The 135-degree split-point tip reduces walking on entry and requires no center punch on most metals. The straight shanks are compatible with standard three-jaw chucks. This set is built for metalworking trades and heavy-duty production work where consistent hole quality across a range of letter sizes is required.
This set is suited to machine shops, maintenance technicians, plumbers, HVAC installers, and electricians who regularly drill through steel, aluminum, cast iron, and similar materials. The full A-to-Z letter range covers the tap drill sizes most commonly needed for threading operations in metal. The included storage case keeps all 26 bits organized and protected between uses, making this a practical bench or field set for daily production or service work.
Designed for use with standard straight-shank drill chucks on benchtop drill presses, portable hand drills, and magnetic base drills. Suitable for metalworking and multipurpose drilling applications measured in the inch system.
Installation is performed by machinists, maintenance mechanics, and trade professionals using a drill press or hand-held power drill. Secure the bit firmly in the chuck and verify it is centered and true before drilling. Always wear appropriate eye protection and secure the workpiece before starting the cut. Follow applicable shop safety standards and equipment manufacturer guidelines when operating drilling equipment.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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