4.2MM TWISTED DRILL HSS-CO GROUND DIN338 STD -a10p

Thürmer Tools Ground HSS Cobalt Twist Drill Bit DIN 338 with split point and 135° point angle is a premium tool designed for precise and efficient drilling in demanding materials. Manufactured from high-quality HSS cobalt, this drill bit delivers excellent heat resistance, long tool life, and strong cutting performance—especially in harder metals. It complies with the DIN 338 standard, ensuring accurate dimensions and reliable use. The ground flute design enables efficient chip evacuation and smooth drilling, while the split point provides immediate centering, reduces the need for pre-drilling, and improves accuracy. Typically used for stainless steel (INOX), high-alloy and tough steels, tool steels, heat-resistant alloys, as well as general steel and cast iron, making it ideal for professional and heavy-duty workshop applications.