S6
Kemper S6 · 102 mm (4 in) plain rectangle · Steel Scraper · Holds a straighter line than polymer · Levels and smooths
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A flexible sheet steel scraper for levelling and smoothing a surface that a polymer rib would flex away from. S6 is 102 mm (4 in), a plain rectangle.
S6 is a steel scraper. It is 102 mm (4 in), a plain rectangle. Steel holds its line where a polymer rib gives at the moment it meets resistance, so a scraper is the tool that actually gets a wall or a slab flat rather than merely smooth. Flex it between finger and thumb and it will follow a gentle curve; hold it stiff and it planes. Serrated versions exist in the same series if you want to score rather than level.
