Chisels that fit the Von Arx SC 25 and SC 35 floor scrapers in place of a blade, for tiles, parquet and hard debris. Two sizes are published: 25 x 280 mm and 50 x 300 mm. Listed with a chisel holder as set 400253, an optional item for both machines. The host machines are hand-guided, self-propelled scrapers with an oscillating stripper head. Von Arx, chisel set 400253.