Value Collection S 171 Tap Collet 0.2559 in 6.50mm

Product Description

The VALUE COLLECTION S 171 is a rubber tap collet designed to securely hold taps during threading operations on manual or CNC tapping equipment. With a collet size of 0.2559 inches (6.50 mm) and a minimum collet capacity of 0.1772 inches (4.5 mm), this collet provides a firm, concentric grip on straight-shank taps across a range of smaller tap sizes. The rubber construction absorbs minor misalignment and reduces tap breakage in both through-hole and blind-hole tapping applications. Machinists and toolroom technicians install this collet in compatible tapping heads or tap holders as part of a production or maintenance threading setup.

This tap collet is suited for use in light-duty to medium-duty tapping operations on ferrous and non-ferrous materials. It is commonly installed in machine shop, maintenance, and production environments where consistent tap alignment and grip retention are required. The 0.2559-inch size targets metric M6.5 and equivalent inch-range taps. No through-coolant feature is present on this collet, making it appropriate for dry or flood-coolant setups where internal coolant delivery is not required.

Key Features

• Collet size of 0.2559 inches (6.50 mm) for precise tap shank engagement
• Minimum collet capacity of 0.1772 inches (4.5 mm) accommodates smaller tap shanks
• Rubber collet construction reduces vibration and helps prevent tap breakage
• No through-coolant port — compatible with dry or external flood-coolant tapping
• Non-tension tap design for use in standard tapping head configurations
• Sold individually — quantity of one per package

Compatibility

Designed as a standard replacement or spare tap collet for compatible tapping heads and tap holders that accept rubber collets in the 0.2559-inch (6.50 mm) size range.

Installation Notes

Installation is performed by a machinist or toolroom technician. Power down and de-energize the tapping machine before changing collets. Ensure the collet bore and tapping head body are clean and free of chips or debris before seating the collet. Follow the tapping head manufacturer's torque and seating guidelines when securing the collet in the holder.