{"product_id":"tormek-blackstone-silicon-250-mm","title":"Tormek Blackstone Silicon 250 mm - SB-250","description":"\u003ch2\u003eSB-250 Blackstone Silicon\u003c\/h2\u003e\r\n\u003cp\u003eTormek's SB-250 Blackstone Silicon has been developed specially to shape and sharpen HSS and other high alloy steels. This makes it popular with woodturners, among others, with its more efficient material removal on hard woodturning tools. The SB-250 Blackstone Silicon has adjustable characteristics equivalent to between 220 and 1000 grit.\u003c\/p\u003e\r\n\r\n\u003ch3\u003eWhy SB-250 Blackstone Silicon?\u003c\/h3\u003e\r\n\u003cul\u003e\r\n\u003cli\u003eMore efficient sharpening of HSS and other high-alloy steels.\u003c\/li\u003e\r\n\u003cli\u003eAdjustable sharpening characteristics equivalent to between 220 and 1000 grit.\u003c\/li\u003e\r\n\u003cli\u003eEffective even at lower grinding pressure.\u003c\/li\u003e\r\n\u003cli\u003eFits the Tormek T-8, Tormek T-7 and older models.\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003ch3\u003eTough on the Toughest\u003c\/h3\u003e\r\n\u003cp\u003eThe combination of grit hardness, shape and size makes the SB-250 Blackstone Silicon work efficiently at the low rpm speeds of the Tormek machine. The higher abrasiveness of the stone is especially valuable when shaping tools with a large bevel or sharpening surface where the grinding pressure is low, such as planer blades and woodturning chisels.\u003c\/p\u003e\r\n\u003cp\u003eThe SB-250 Blackstone Silicon fits the Tormek T-8, Tormek T-7 and earlier Tormek models with a grinding wheel 250 mm (9 7\/8\") in diameter and 50 mm (2\") wide.\u003c\/p\u003e\r\n\r\n\u003ch3\u003eEfficient Material Removal, for a Long Time\u003c\/h3\u003e\r\n\u003cp\u003eThe SB-250 Blackstone Silicon has sharpening properties equivalent to 220 grit. The SP-650 Stone Grader allows the surface of the stone to be adjusted up to an equivalent of 1000 grit. Its sharp and relatively small grits mean it sharpens efficiently even at low sharpening pressure. This means that the SB-250 Blackstone Silicon holds its shape exceptionally well over time and thus has a very long service life.\u003c\/p\u003e\r\n\r\n\u003ch3\u003eSpecs and details\u003c\/h3\u003e\r\n\u003cp\u003e\u003cstrong\u003eDiameter:\u003c\/strong\u003e 250 mm (9 13\/16\")\u003cbr\u003e\u003cstrong\u003eWidth:\u003c\/strong\u003e 50 mm (1 15\/16\")\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e Shipping weight 4.39 kg (9.68 lb)\u003cbr\u003e\u003cstrong\u003eColour:\u003c\/strong\u003e Black\u003cbr\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e Silicon carbide\u003cbr\u003e\u003cstrong\u003eGrit:\u003c\/strong\u003e Adjustable sharpening characteristics equivalent to between 220 and 1000 grit\u003cbr\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 2-year warranty\u003c\/p\u003e","brand":"Tormek","offers":[{"title":"Default Title","offer_id":58748003549558,"sku":"TOR-SB-250","price":191.98,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/7965\/8664\/files\/tormek-blackstone-silicon-250-mm-sb-981.webp?v=1789596855","url":"https:\/\/www.ukpenblanks.co.uk\/products\/tormek-blackstone-silicon-250-mm","provider":"UK Pen Blanks","version":"1.0","type":"link"}