General 1280ST Hollow Punch Set 6 Pc 3/16 to 1/2 Inch

Product Description

The GENERAL 1280ST is a 6-piece hollow punch set designed for cutting clean, precise holes in soft materials such as leather, gaskets, rubber, cork, and similar sheet goods. Each punch features a square shank for positive grip in a hammer or mallet and is machined from steel for durability under repeated impact. The set covers six standard sizes ranging from 0.1875 inches to 0.5 inches, making it a practical single-purchase solution for technicians who regularly fabricate gaskets or cut access holes in flexible materials. Punches store in an included plastic roll for organized transport and quick size selection on the job.

This set is suited for HVAC, plumbing, and mechanical trades where field-fabricated gaskets or custom cutouts in soft sheet material are part of routine service work. Typical applications include cutting rubber or cork sheet stock to fit pipe flanges, punching grommets in ductwork liners, and fabricating replacement gaskets. The six included sizes handle the most common fractional dimensions encountered in residential and light commercial service work.

Key Features

• Six punches cover 0.1875, 0.25, 0.3125, 0.375, 0.4375, and 0.5 inches in a single set
• Steel construction withstands repeated mallet strikes without deforming
• Square shank prevents rotation and improves strike alignment
• Plastic roll storage keeps all six punches organized and protected
• Standard punch style fits common bench and hand-held punch workflows

Compatibility

Designed as a general-purpose hollow punch set for use on soft sheet materials including rubber, leather, cork, vinyl, and gasket stock commonly encountered in HVAC, plumbing, and mechanical service applications.

Installation Notes

Hollow punches are typically used by HVAC technicians, plumbers, and mechanical contractors working with soft sheet materials. Place the material on a hard, sacrificial backing surface such as a steel plate or end-grain wood block before striking to achieve a clean cut and protect the punch edge. Strike squarely with a ball-peen hammer or dead-blow mallet. Inspect the cutting edge before each use and do not strike a punch that shows chipping or deformation.