The No.21 is a large version of the No.10 blade with a curved cutting edge and a flat, unsharpened back edge. Larger than the No.20 but smaller than the No.22 the No.21 fits handles 4, 4L, 4 Graduated & 6B.
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We want you to be 100% satisfied with your purchase. Items can be returned or exchanged within 30 days of delivery.