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A 20 mm Flange Pair supports blades on saws running a 20 mm bore, keeping the plate seated evenly against the arbor. Clean, flat flange faces matter when fine dust, resin build-up, or light burrs start showing as wobble in the cut. On busy South African workshop lines, this small set-up point often decides whether a blade tracks true or leaves marks on the material edge.
Use this pair where the machine spindle and blade bore are both matched to 20 mm, and check that each face sits free of pitch before mounting. After blade changes, inspect for scoring, nicks, and uneven tightening patterns that can shift the blade under load. If your saws use mixed arbor standards across the shop, send the sizes through our contact form so the right flange arrangement can be checked.
Match the flange pair to the blade bore, then confirm the contact area is clean and sitting square before tightening. For set-up references and blade selection, see Blades, Kerfs, and Resources alongside this holder range. Resin-heavy timber, board dust, and repeated blade swaps all make regular flange cleaning worth doing.
A precise cutter catalogue without holders is half a story. TrueCut keeps holders visible so workshops do not invent flange habits under pressure. Operated by Astros Marketing (Pty) Ltd, Sunnyrock 1401.
Our contact form for size checks in Kya Sands, Johannesburg
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