Osg 1653504508 Spiral Point Tap 5/8-11 3 Flute

Product Description

The OSG 1653504508 is a spiral point tap designed for threading operations in a wide range of metals. Part of the EXOTAP VC-10 series, it cuts a 5/8-11 thread with a plug chamfer and a 2B class of fit. The tap is manufactured from powdered metal and finished with a TiCN coating, which reduces friction and extends tool life under demanding cutting conditions. It has an overall length of 7.87 inches and a thread length of 1.9 inches. The H5 thread limit provides controlled oversize for reliable fit in tapped holes. This tap is installed by machinists, tool and die makers, and maintenance professionals working in production or job-shop environments.

This tap is suited for through-hole threading applications in both ferrous and non-ferrous materials. Recommended material applications include alloy steel, aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, medium-carbon steel, stainless steel, hardened steel, and die steel. The right-hand thread direction and plug chamfer make it well suited for machine tapping where the tap enters an existing hole with a lead-in. It is not configured for coolant-through delivery and is not designed for interrupted-thread applications.

Key Features

• 5/8-11 thread size with 2B class of fit and H5 thread limit for dimensional consistency
• Plug chamfer style provides gradual lead-in, ideal for through-hole machine tapping
• 3-flute spiral point design pushes chips forward, keeping the cutting zone clear
• TiCN coating reduces friction and improves wear resistance across a wide material range
• Powdered metal construction provides toughness and consistent grain structure
• EXOTAP VC-10 series, Series 16535

Compatibility

Designed as an OEM-style replacement or standard production tap for machine tapping operations requiring a 5/8-11 right-hand thread in the materials listed above. No specific machine or equipment compatibility data was provided.

Installation Notes

This tap is intended for use by qualified machinists using CNC machining centers, drill presses, or tapping machines capable of maintaining proper speed and feed for the workpiece material. Power down and secure the workpiece fully before beginning the tapping cycle. Use appropriate cutting fluid or tapping compound for the material being threaded even though this tap does not use coolant-through delivery. Follow shop safety practices and applicable OSHA machine guarding requirements when operating tapping equipment.