HA1 - Malco Quick Connect Arbor

The Malco HA1 Quick Connect Arbor is a specialized tool designed for use with Malco’s “Quick Action” carbide-tipped hole saws. Here’s a breakdown of its key features and specifications:

Malco HA1 Quick Connect Arbor – Overview

• Compatibility: Designed for hole saws ranging from 1-3/8 inches to 6-5/16 inches in diameter.
• Thread Size: Industry-standard 5/8-18 threads.
• Quick Connect Mechanism: Allows fast and secure attachment of both the pilot drill and hole saw.
• Plug Ejection: Features a quick release that makes removing saw plugs easy.
• Pilot Drill Compatibility: Works with Malco’s “Quick Change” pilot drills, available in high-speed steel and carbide-tipped versions.
• Hex Shank: 10 mm hex shank for tight gripping in a 1/2 inch (12.7 mm) drill chuck

This arbor is part of Malco’s modular hole saw system, which is designed for fast tool changes and efficient cutting through tough materials like wood, tile, fiberglass, plastic, and fiber-cement siding.