Quick Connect Arbor designed for use with Malco's carbide-tipped hole saws - Malco which features a larger 3/8"

which features a larger 3/8" MPT inlet compared to the 5230 series

Weight: 410 lbs

3/8" Drive Shallow 6-Point Socket 19 mm

Whether you need it for water gardens

Rectorseal 68104

Quick Connect Arbor designed for use with Malco's carbide-tipped hole saws - Malco which features a larger 3/8"The Malco HA3 is a Quick Connect Arbor designed for use with Malco's carbide tipped hole saws. It's engineered for fast, secure attachment and is compatible with a wide range of hole saw sizes. Product Specifications: Model: HA3 Thread Size: 5 8" 18 Hex Opening: 10 mm Compatible Hole Saw Sizes: 1 3 8" to 6 5 16" (35 mm to 160 mm) Material Compatibility: Designed for use with carbide tipped hole saws Pilot Drill Compatibility: Works with Malco HH4