The kwb 421140 HSS Metal twist drill bit set is a 5-piece collection designed for precision drilling in metal and sheet metal. This set features steel drill bits with a DIN 1412 C standard and a 1/4" (6.3 mm) shank for effective machining. Typically used with SDS Plus bits, it is ideal for both professional and DIY machining tools applications. https://elecena.pl/product/28058088/kwb-421140-hss-metal-twist-drill-bit-set-5-piece-1-4-quot-hex-chuck 2025-03-23 https://elecena.pl/product/28058088/kwb-421140-hss-metal-twist-drill-bit-set-5-piece-1-4-quot-hex-chuck 2026-07-09