STANLEY 5-21-398 Fine-Ground Blade 42 mm, 1 Piece, for Aluminium, Copper, Hardwood, Plasterboard, Softwood

Cutting through tough materials like aluminium, copper, hardwood, plasterboard, and softwood demands a blade that stays sharp and precise. The STANLEY 5-21-398 fine-ground blade delivers clean, controlled cuts across these demanding materials, reducing splintering and edge fraying. Its finely honed edge glides through metal and wood with less effort, making it a reliable choice for professionals and serious DIYers who need consistent performance.

Who is it for

This blade is ideal for electricians, plumbers, carpenters, drywall installers, and renovation specialists who regularly cut a mix of metals and wood-based boards. It suits anyone who values a sharp, durable edge that minimises rework and keeps projects moving.

Main features

• Fine-ground cutting edge for smooth, accurate cuts in aluminium, copper, hardwood, plasterboard, and softwood.
• 42 mm blade width offers a balance of control and reach for detailed work.
• Compatible with STANLEY knives 21-399, 21-102, and 21-104.
• Supplied in a single pack with a visible blister for easy identification.

Tips

For best results, use a steady, even pressure and let the blade do the work. Replace the blade when you notice increased resistance or rough edges on your cuts. Always store blades in a dry place to prevent corrosion.