HD4470 – Comb Opener

The Rhin-O-Tuff HD4470 Comb Opener is the ideal tool for effortlessly opening plastic binding combs, streamlining your comb binding workflow. With adjustable ring control and an adjustable limit stop, it ensures consistent opening widths and prevents overextension—keeping the comb open while you work without slipping shut.

Built for maximum versatility, the HD4470 handles comb sizes from 1/4” to 2” and supports up to 21-element combs for documents as wide as 14 inches. Its compact footprint and mounting compatibility with all OD and HD vertical punches—including the Tornado Autopunch EX—make it an excellent addition to any bindery or office setup.

Whether you’re producing slim reports or thick manuals, the HD4470 delivers reliable, user-friendly performance for consistent, high-quality comb-bound documents.

Comb Element Compatibility:

1/4” (6mm) to 2” (51mm) plastic combs

Max Binding Width:

Up to 14” (356mm) wide / 21-element combs

Binding Thickness:

Up to 2” thick documents

Opening Mechanism:

Manual with adjustable ring opener control and limit stop

Mounting Options:

Compatible with Rhin-O-Tuff OD & HD vertical punches; optional mounting kit available

Construction:

Heavy-duty design for commercial environments

Applications:

Ideal for presentations, reports, manuals, and mid-to-high volume comb binding tasks