OLFA HB-20B 1" Snap-Off Blades - 20-Pack

The OLFA HB-20B 1" Snap-Off Blades are a 20-pack of heavy-duty replacement blades from OLFA, sized to fit 1" (18mm) snap-off utility knives. Each blade is segmented so crews can snap off a dull tip and expose a fresh, razor-sharp edge, keeping cuts clean on EIFS foam board, insulation, fiberglass mesh, and packaging on the job site.

Key features

• Pack of 20 OLFA HB-series snap-off blades
• 1" (18mm) heavy-duty width for tougher cutting
• Snap-off segments deliver a sharp edge in seconds
• Precision-ground edge for clean, accurate cuts
• Fits standard 1" OLFA-style snap-off knife handles

How contractors use it

EIFS and stucco crews rely on these blades for trimming insulation board, cutting reinforcing mesh, scoring foam, and opening material bundles. When a tip dulls, the operator snaps it off and keeps working without stopping to swap a whole blade, which speeds up production on the wall.

Why buy from New England Building Supply

New England Building Supply Corp is a Connecticut EIFS, stucco, and masonry supplier in Meriden, CT. We back contractors with competitive contractor pricing and quotes, deep inventory on the consumables your crews burn through, and job-site delivery across the region. Call (203) 565-4719 or request a quote.

Frequently asked questions