Hss-bi- metal l is suitable for drilling round holes in almost all machinable materials including cast iron, va and tool steels, copper, bronze, aluminum and wood, all sizes 4 bi-ve tool steels copper, bronze, aluminum and wood available, all sizes must be used with 4 38 mm baskets, the respective shafts allow easy and fast clamping in manual or stationary drilling machines, delivery without capacity Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.