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 a protective carrying case. 

Manufacturer: Olfa

SKU: 9452

Size: 45mm