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The CENTURY DRILL TOOL CO INC 95308 is a two-piece combo pack containing a 12-24 national coarse plug-style machine screw tap and a number 16 drill bit. The tap features precision-cut threads that are accurately formed for consistent, repeatable threading results. Both the tap and bit are heat treated and tempered for hardness, extending service life under regular use. This combo is designed for hand cutting applications and is sold as a set of 2 pieces, making it a practical addition to any tradesperson's threading kit.
This combo pack suits metalworking tasks where 12-24 national coarse threaded holes are required. It is commonly used in electrical, HVAC, and plumbing trades when securing components with machine screws into metal enclosures, brackets, or panels. The plug-style tap configuration is well suited to starting threads in through-holes. The included number 16 drill bit is sized to produce the correct pilot hole diameter for clean, accurate 12-24 thread cutting.
Designed as an OEM-style tap and drill bit set for hand threading 12-24 national coarse machine screw holes in metal substrates.
Installation is performed by hand using a tap wrench; no power tools are required or recommended for this plug-style tap. Secure the workpiece before beginning to prevent movement during threading. Apply cutting fluid to the tap to reduce friction and improve thread quality. Follow standard shop safety practices and wear appropriate eye protection when drilling and tapping.
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