Osg 1013700 Straight Flute Tap 6-32 Unc Plug 3B Hss

Product Description

The OSG 1013700 is a straight flute plug tap designed for right-hand thread cutting in ferrous and non-ferrous metals. Built from high-speed steel with a bright, uncoated finish, it cuts a 6-32 UNC thread to a 3B class of fit with an H2 thread limit. The plug chamfer distributes cutting load across several leading threads, making it suited for through-hole and moderately deep blind-hole applications. With a 2-inch overall length and a 0.464-inch thread length, it is sized for standard hand-tap and machine-tap holders used in production and maintenance environments. Installation is handled by machinists, toolmakers, and maintenance technicians.

This tap is intended for tapping 6-32 UNC threads in a range of common metals encountered in general manufacturing, fabrication, and equipment repair work. It performs in through-hole and plug-style blind-hole conditions where a standard plug chamfer is appropriate. Typical use cases include tapping threaded inserts, fastener holes, and fixture components in shop and field settings.

Key Features

• 6-32 UNC thread form, 32 threads per inch, right-hand direction
• Plug chamfer distributes cutting force across initial threads for reliable thread entry
• 3 straight flutes - appropriate for short-chipping materials and through-hole applications
• H2 thread limit for controlled tolerance fit to 3B class of fit specification
• High-speed steel construction with bright, uncoated finish
• No coolant-through requirement - compatible with standard cutting fluid application

Compatibility

Designed for tapping aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel. Fits standard tap holders sized for a 0.141-inch shank diameter.

Installation Notes

This tap is installed by machinists or maintenance technicians using a tap wrench, tapping head, or CNC rigid-tap holder. Always use appropriate cutting fluid for the workpiece material and ensure the tap is properly aligned with the pilot hole to avoid breakage. De-energize and lock out any powered machinery before hand-tapping in field repair situations. Replace tap if cutting torque increases sharply or thread quality degrades, as high-speed steel taps are susceptible to breakage under side load.