These sasu nomi come from the Fujikawa forge in Miki City, Hyogo prefecture.
The expertly finished slicks are forge-welded and will stand any comparison. The cutting steel is white paper steel (Shirogami no. 2) and the handle is made of red oak. The handle is a tang with a steel ferrule used to center and support the handle. You may notice a hairline crack between the ferrule and the steel of the blade. This is to help
Let's talk about the width of the japanese slicks. In the US we tend to select a 2-in slick for timber framing because most of the joints are two inches wide or smaller and it is nice to be able to slick the end grain of the mortices. But these Japanese slicks are made using the metric system and mm do not always convert evenly to inches. An accepted standard for the 2-in slick is a 48-mm slick which actually measures to 1-7/8-in. We prefer this over the 50 mm slick which converts to 1-31/32-inches because it gives just a little wiggle room to make the joint clean. Check out the mm to inch conversion chart in the photos for more clarification.
Blade length approx. 115 mm
Total length with white oak handle approx. 580 mm