Expert Quality, a selection of metric-sized high speed steel straight shank drills (with 5% cobalt). The addition of cobalt to HSS adds strength and wear resistance for longer life. *For use with Metric Helicoil® Thread Repair Kits. Display packed. Manufactured to DIN338 and ISO235/1 Specifications https://elecena.pl/product/27247583/draper-expert-39091-2mm-cobalt-twist-drill 2024-11-12 https://elecena.pl/product/27247583/draper-expert-39091-2mm-cobalt-twist-drill 2026-07-14