Osg 2813400 Spiral Point Tap 10-24 Unc 3 Flute Plug

Product Description

The OSG 2813400 is a spiral point tap designed for cutting internal threads in through-hole applications. Built from vanadium high speed steel with a bright finish, this plug chamfer tap pushes chips forward ahead of the cutting edge, making it well suited for production tapping in through holes. The 10-24 UNC thread form, H3 thread limit, and 2B/3B class of fit make it a standard choice for general-purpose fastener thread forming across a wide range of metallic materials. Overall length is 2.374 inches with a thread length of 0.492 inches and a shank diameter of 0.194 inches.

This tap is used in machining, maintenance, and repair operations across light manufacturing, HVAC equipment fabrication, and general metalworking. It is appropriate for tapping aluminum, low-carbon steel, medium-carbon steel, high-carbon steel, alloy steel, die steel, stainless steel, cast iron, and hardened steel. The 3-flute spiral point geometry is particularly effective in CNC and manual drill press setups where through-hole access allows forward chip evacuation. Machinists, tool and die workers, and maintenance technicians are the primary users.

Key Features

• Spiral point geometry pushes chips forward for clean through-hole tapping
• Vanadium high speed steel construction for wear resistance across a broad material range
• Bright finish with no coating for straightforward application across general shop use
• H3 thread limit provides consistent 2B/3B class of fit tolerance
• 3-flute design balances chip load and cutting stability in standard materials
• Right-hand thread direction for standard fastener thread orientation

Compatibility

Designed for through-hole tapping in 10-24 UNC thread applications across aluminum, hardened steel, stainless steel, high-carbon steel, low-carbon steel, medium-carbon steel, alloy steel, die steel, and cast iron workpieces.

Installation Notes

This tap is installed and operated by machinists or maintenance technicians using a tap wrench, tapping head, or CNC tapping attachment. Always secure the workpiece and ensure proper alignment before starting the tap to avoid breakage. Use appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality. Inspect the tap for wear or chipping before each use and replace at the first sign of damage.