OLFA LB 18mm Heavy-Duty Snap Blades - Silver - 50 PackOLFA 18mm Heavy Duty Silver Snap Off Blades are tough snap blades that tradespeople rely on daily. Crafted from high quality Japanese tool steel and skilfully honed to be extra sharp and with superior edge retention for maximum blade life. Choose these hard wearing blades to work through demanding and coarse materials. Created with a deep and smooth snap line, each razor sharp section snaps cleanly but is durable enough for tough construction or