{"product_id":"hira-ganna-japanese-smoothing-plane-by-yamamasa-70mm","title":"Hira-ganna Japanese Smoothing Plane by Yamamasa - 70mm","description":"\u003cp\u003eBrand name:\u003cspan\u003e \u003cem\u003e\u003cstrong\u003eYamamasa\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e\u003cspan\u003e (山正)\u003c\/span\u003e\u003cspan\u003e)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eSmith name: \u003cem\u003e\u003cstrong\u003eUnknown\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSteel:\u003cem\u003e\u003cstrong\u003e\u003cspan\u003e \u003cmeta charset=\"utf-8\"\u003eCarbon Steel\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eJigane(Iron part of the blade):\u003cstrong\u003e\u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003e\u003cspan\u003e \u003cmeta charset=\"utf-8\"\u003eMay be “Honsui”\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eBlade Width:\u003cspan\u003e \u003cem\u003e\u003cstrong\u003e70\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003cem\u003e\u003cstrong\u003emm\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eBlade length:\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e111mm\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eBlade thickness:\u003cem\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003eThe blade near the bevel(about 5.00mm)，Top of Blade（about 7.70mm）\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-info__block-item\" data-block-type=\"description\"\u003e\n\u003cdiv class=\"prose\"\u003e\n\u003cp\u003eBlade Weight: \u003cspan\u003e\u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e332g\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eBlade Angles:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e22°\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eChip Breaker\u003cspan\u003e \u003c\/span\u003eWidth:\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e60mm \u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eDai manufacture:\u003cspan\u003e \u003cmeta charset=\"utf-8\"\u003e \u003cem\u003e\u003cstrong\u003eUnknown\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDai size(length, width, thickness):\u003cem\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e275mm 86mm 35mm\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eTotal weight:\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e1100g\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eManufacture Era:\u003cspan\u003e\u003cem\u003e\u003cstrong\u003e \u003cmeta charset=\"utf-8\"\u003eBefore 1940\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eAdditional Information:\u003cstrong\u003e\u003c\/strong\u003e\u003cem\u003e\u003cstrong\u003e  Used, it\u003c\/strong\u003e\u003cstrong\u003e comes from a retired carpenter in the Kanto region. \u003cmeta charset=\"utf-8\"\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003cstrong\u003e\u003cem\u003eThe blade is an Usu-zukuri (thinly made) type. The blade is crafted with a high-quality iron base (jigane), which is likely to be \"Honsui\".\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eI have re-sharpened this blade, finishing the bevel with an Uchigumori stone and  the ura with a natural Suita whetstone. During the sharpening process, I noticed that while the jigane (soft iron base) is not quite as soft as traditional watetsu , it is still significantly softer than comparable modern soft steel. The cutting steel itself is quite hard.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eHowever, during sharpening, I discovered that the steel's grain structure near the tip appears slightly coarse, likely due to local overheating during its original forging process. If you find this to be the case during use, I would recommend grinding back the tip by about 2mm.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cem\u003e\u003cstrong\u003eThe dai is crafted from high-quality Japanese white oak and shows minimal warping. Regarding its unique uragane (chipbreaker), please refer to the additional information provided in this \u003cspan style=\"color: rgb(0, 170, 255);\"\u003e\u003ca href=\"https:\/\/tenmoku0701.myshopify.com\/products\/kanna-japanese-smoothing-plane-blade-by-hiromitsu-86mm\" target=\"_blank\" style=\"color: rgb(0, 170, 255);\" rel=\"noopener\"\u003eitem\u003c\/a\u003e.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"TENMOKU","offers":[{"title":"Default Title","offer_id":48144644571374,"sku":null,"price":26000.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/0162\/5326\/files\/DSF4353_ccb721fa-1682-4293-858c-377471871169.jpg?v=1781314619","url":"https:\/\/tenmoku0701.myshopify.com\/products\/hira-ganna-japanese-smoothing-plane-by-yamamasa-70mm","provider":"TENMOKU","version":"1.0","type":"link"}