Sorby Excelsior Spindle Gouge Blade, 3/8 in. This high-quality spindle gouge blade from Robert Sorby’s Excelsior range is designed specifically for the connoisseur wood turner and those who frequently work with hard woods. Featuring a plasma bonded Titanium Nitride (TiN) coating layered over traditional triple tempered High Speed Steel (HSS), this blade exceptional edge retention and tool longevity. The TiN coating dramatically improves edge holding ability and reduces friction between the metal and wood, making it i for working with extremely hard or abrasive woods and cutting through knotted burrs. With a Rockwell hardness equivalent of 80, the Excelsior blade outperforms even tungsten carbide tools and lasts up to four times longer than standard tools. Despite its hardness, it remains easy to sharpen and eliminates chipping and brittleness. This 3/8" blade, approximately 8" in length, is for producing detailed work on between center projects where the grain runs parallel to the lathe bed. Spend more time turning and less time sharpening with this premium spindle gouge blade from England. Model Number: B840G100