Osg 1105613008 Spiral Point Tap 1/2-13 Unc Ticn

Product Description

The OSG 1105613008 is a spiral point tap designed for producing internal threads in through-hole applications. Built from powdered metal and finished with a TiCN coating, this tap delivers extended tool life in demanding materials. It cuts a 1/2-13 UNC thread profile with a plug chamfer, right-hand thread direction, and a 2B class of fit. The H5 thread limit ensures consistent tolerance control. With 3 flutes and a spiral point geometry, the tap pushes chips ahead of the cut rather than backing them out, making it well-suited for through-hole production work on CNC machining centers and manual lathes alike.

This tap is rated for use in hardened steel, stainless steel, high-nickel alloy, titanium, and alloy steel. It fits residential and commercial machining, fabrication, and maintenance-repair-overhaul applications where thread quality and tool longevity in tough alloys are priorities. The plug chamfer style makes it appropriate for through-hole threading where the tap can extend beyond the workpiece. Series 312TI taps from OSG are a common choice in production environments running high-strength materials at moderate to high feed rates.

Key Features

• TiCN coating reduces friction and improves wear resistance in hard and abrasive materials
• Powdered metal construction provides a fine-grain substrate for improved edge strength
• Spiral point geometry pushes chips forward, reducing chip packing in through-hole applications
• H5 thread limit supports consistent 2B class of fit tolerances
• Plug chamfer allows progressive thread engagement, suitable for through-hole use
• Right-hand cut, no coolant-through required - compatible with standard coolant flood setups

Compatibility

Designed for through-hole tapping of 1/2-13 UNC threads in hardened steel, stainless steel, high-nickel alloy, titanium, and alloy steel workpieces. Suitable for use in tapping heads, CNC machining centers, and manual drill press setups configured for right-hand threading.

Installation Notes

Installation should be performed by a qualified machinist or tool-and-die professional. Ensure the spindle speed and feed rate match the material being tapped before starting the operation. Use appropriate cutting fluid or coolant flood to manage heat, particularly when working in stainless steel or high-nickel alloys. Do not reverse the tap under load without confirming machine settings, as thread damage or tap breakage can result.