Wallpaper Knife Grand GR-84 with 18 mm Blade, Safety Lock and Guide

Grand GR-84 is a wallpaper knife designed for precise cutting of wallcoverings and similar materials. It features an 18 mm replaceable blade, an integrated safety lock to secure the blade when not in use, and a guide for controlled straight cuts. The compact body and ergonomic shape support steady handling during trimming and finishing tasks, making the tool suitable for both professional fitters and DIY enthusiasts who need accurate, repeatable cuts.

Advantages

The knife offers a replaceable 18 mm blade that combines cutting capacity with easy maintenance: blades can be swapped quickly to restore sharpness. An integrated safety lock prevents accidental blade exposure when the tool is stored. The built-in guide enhances straight-line cutting and helps reduce material waste by improving alignment. The ergonomic handle provides a secure grip, improving control during extended use.

Suitable for

• Installing and trimming wallpaper and vinyl wallcoverings
• Cutting lining paper and non-woven backing materials
• Precision trimming around windows, sockets and mouldings
• DIY renovations and professional wallpaper finishing

Key specifications

• Blade width: 18 mm replaceable blade for general-purpose cutting
• Safety: integrated lock mechanism to secure the blade when not in use
• Guide: built-in guide for controlled straight cuts and alignment
• Handle: ergonomic body designed for steady grip and one-handed operation
• Blade type: snap-off / replaceable utility blade compatible with standard 18 mm sizes

How to use

Extend or install a fresh 18 mm blade according to the handle’s blade holder instructions and engage the safety lock before inserting the knife into storage. Position the guide against the edge or a straight edge and apply steady pressure while pulling the knife toward you for a clean cut. For repeatable straight cuts, use the guide as a reference and keep the blade angle consistent. Replace or sharpen the blade when cutting performance decreases.

Usage recommendations

Always engage the safety lock before storing the knife and wear appropriate hand protection if performing extended cutting tasks. Use a straightedge or guide for long cuts to improve accuracy and reduce the risk of slipping. Replace blades in a safe area and dispose of used blades in a designated blade container or sharps-safe box.