This 29mm RUKO HSS bi-metal hole saw has varied tooth spacing and is suitable for unalloyed steel (up to 700 N/mm² strength), non-ferrous and light metals, plastics, plasterboard and light building boards, fibreboard, plywood and wood. It is particularly suitable for use with hand drills, pillar drills and lathes. * Uses a separate arbor, allowing saws of different diameters to be rapidly exchanged * Use arbor type A1, order code 60-7715 * High rotational precision * Sturdy construction * Positive chipping and cutting angles ensure more aggressive cutting * Varied toothing ensures smoother cutting, less effort, less vibration and heat production during cutting, giving up to 3x longer tool life * HSS bi-metal with compound teeth * Good chip removal * Slots in the jacket side assist removal of cutout material * RUKO type 106 029 https://elecena.pl/product/27731498/ruko-106029-hss-bi-metal-hole-saw-29mm 2025-01-21 https://elecena.pl/product/27731498/ruko-106029-hss-bi-metal-hole-saw-29mm 2026-07-04