8R4
Kemper 8R4 · One end is a wide flat arrowhead loop; the other a broad wedge coming to a point · 203 mm (8 in) overall, double ended · Ribbon steel cutting heads, one at each end
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A 203 mm (8 in) double-ended ribbon tool, 8R4 in Kemper's range of seven. One end is a wide flat arrowhead loop; the other a broad wedge coming to a point. A cutting head at each end, so one tool covers two profiles.
8R4 is one of seven shapes in Kemper's eight-inch ribbon range, with a cutting head at each end. One end is a wide flat arrowhead loop; the other a broad wedge coming to a point. Kemper's ribbon tools take their name from the thin flat ribbon-like steel that forms the cutting head, which gives a sharp edge with extra strength in the direction of the cut. 203 mm (8 in) overall, which is the length that lets you reach into a hollowed form without your knuckles fouling the rim.