Olfa 45mm Replacement Blade for Rotary Cutter. 

Made of tungsten carbide tool steel for superior blade quality. Don't get caught with a dull blade during your projects! Stock up here and save big with one of the most competitive prices you'll find in retail stores or online.

From the Olfa site:

This OLFA® rotary blade cuts up to six layers of fabric at a time, saving you precious time. Because the blade is made of tungsten tool steel, it retains its sharp edge, saving you money. The replacement blade fits any OLFA® 45mm rotary cutter. (RB45-1, #9452)

Good For: cutting strips and multiple layers at once. Cuts fabric, paper, tarp, vinyl, upholstery and more.

Package contains one circular replacement blade for Olfa rotary cutters in an protective carrying case. 

Manufacturer: Olfa

SKU: 9452

Size: 45mm