Value Collection H42P-5 Porting Tool 0.926 in Spotface Hss

Product Description

The VALUE COLLECTION H42P-5 is a straight-shank porting tool designed for spotfacing and port preparation on tube fittings and hydraulic or pneumatic connections. Machined from high-speed steel (HSS) with a bright, uncoated finish, this tool cuts a 0.926-inch spotface diameter on workpieces with a 5/16-inch tube outside diameter. The plain pilot style and 4-flute geometry deliver clean, controlled cutting on both ferrous and non-ferrous metals. With an overall length of 3.5 inches and a minimum pilot diameter of 0.448 inches, the H42P-5 meets MS 16142 standards for porting tool geometry and dimensional accuracy.

This tool is suited for shops, maintenance facilities, and field technicians working with tube fittings in hydraulic, pneumatic, or fluid-line systems. It is used to resurface or prepare port seats to accept straight-thread tube fitting connections with a 1/2-20 port thread size. The 12-degree seal angle and straight thread type make it appropriate for straight-thread O-ring port applications where a clean, flat spotface is required for a proper seal. Compatible workpiece materials include ferrous metals such as carbon and alloy steels as well as non-ferrous metals including aluminum and brass.

Key Features

• 0.926-inch spotface diameter for 5/16-inch tube OD fittings
• High-speed steel construction for durability on ferrous and non-ferrous metals
• 4-flute design promotes smooth cutting action and chip evacuation
• Plain pilot style with 0.448-inch minimum pilot diameter for positive alignment
• Meets MS 16142 dimensional and geometric standards
• Bright, uncoated finish - no coating to interfere with dimensional tolerances

Compatibility

Designed for use on tube workpieces requiring a 5/16-inch OD tube fitting spotface with a 1/2-20 straight port thread. Suitable for ferrous and non-ferrous metal workpieces per the MS 16142 porting tool standard.

Installation Notes

This tool is typically used by machinists, hydraulic system technicians, or maintenance professionals operating a drill press, milling machine, or hand-held power tool with a suitable straight-shank chuck. Secure the workpiece firmly before operation and ensure the pilot is properly seated before engaging the spotface cutter. Use appropriate cutting fluid for the base material to extend tool life and achieve a clean finish. Follow shop safety procedures and applicable industry standards when performing porting or spotfacing operations.