The blade is thinned at the tip for tasks like removing wood chips and adjusting the mouth of the plane during blade setting and bed preparation. Also, the blade is angled to reduce cutting resistance when planing white oak. The Mandaraya website is a good reference for usage: https://daiku-dougu.jp/2a-2.htm This one is 22,400 yen. Recommended for those who are particular about blade setting and want to do it properly. Please refrain from price negotiations, except for bulk purchases. Please consult us in advance for bulk purchases.