OLFA 45mm RB45 Tungsten Steel Rotary Blade, OLFA's most popular blade, combines the strength of high-quality tungsten steel with expert honing for a blade that cuts up to eight layers of cotton with ease. Paper, fabric, leather and more, this blade can tackle them all - crafting precise edges and clean cuts. With over 40 years of experience crafting the best blades, this ultra sharp rotary blade will not let you down.

• Tungsten steel blade 45 mm (RB45-1, #9452)
• Expertly honed for sharpness
• Cuts up to eight (8) layers of cotton
• These refill blades come in a convenient plastic case for easy storage or disposal.
• Compatible with most 45mm Rotary Cutters, including: RTY-2/C Quick-Change Rotary Cutter, RTY-2/NS Quick-Change Rotary Cutter, RTY-2/G Straight Handle Rotary Cutter, and RTY-2/DX Ergonomic Rotary Cutter.

The name Olfa comes from two Japanese words meaning "to break a blade." In 1956 they invented the snap off utility blade after founder Yoshio Okada was inspired by breaking pieces off a chocolate bar, and by the snap edges of broken glass. This snap off blade design has been copied and used around the world, but the Olfa quality standard cannot be duplicated. In 1979 Olfa also introduced the world's first rotary cutter, great for fabric, the blade rolls along, cutting as it goes.