Do It RK7B-DIB 18mm Snap-off Utility Knife

Product Description

The DO IT RK7B-DIB is an 18mm snap-off utility knife built for trade and jobsite use. It features an auto-lock slide mechanism that speeds up blade advancement and holds the blade firmly at each position. The knife ships with three blackened carbon steel blades that are heat-treated to a sharper edge than standard snap blades. A stainless-steel blade track keeps lateral movement tight, while the heavy-duty soft-grip handle reduces fatigue during extended cutting tasks. A built-in blade snapper lets the user break off dull segments cleanly and safely without a separate tool.

This knife suits drywall installers, flooring mechanics, electricians, plumbers, and general contractors who need a reliable, heavy-duty cutting tool on the job. It handles tasks such as scoring drywall, trimming insulation, cutting sheathing, slitting tape, and opening packaging. The 18mm blade width provides a wider cutting surface than standard 9mm knives, giving more control on long cuts and thicker materials.

Key Features

• Auto-lock slide for secure, tool-free blade positioning at each snap segment
• Includes 3 blackened carbon steel blades sharpened beyond standard snap-blade tolerance
• Stainless-steel blade track minimizes lateral blade flex during cuts
• Heavy-duty soft-grip handle for comfort and control during extended use
• Integrated blade snapper allows safe segment removal without a separate tool
• 18mm blade width for wider cutting surface on drywall, insulation, and sheet materials

Compatibility

Designed for use with standard 18mm snap-off replacement blades common to this knife format.

Installation Notes

No installation is required for this hand tool. Before advancing or snapping a blade segment, engage the auto-lock mechanism fully to prevent unintended blade movement. Use the integrated blade snapper rather than bending segments by hand to reduce the risk of blade fragments. Dispose of used blade segments in a puncture-resistant sharps container in accordance with jobsite safety protocols.