The COBALT spiral drill bit with a diameter of 4.2 mm from kwb is a high-quality tool specifically designed for working with metal and steel. This drill bit is made from a cobalt-alloyed HSS steel alloy, which offers increased heat resistance and durability. With a precision-ground design and a point angle of 135°, it enables efficient and precise drilling in difficult-to-machine materials such as alloyed and unalloyed steel, Nirosta stainless steel, gray cast iron, and plastics. The cylindrical shank ensures a secure connection with the drill chuck, while the cross-ground tip according to DIN 1412 C provides a self-centering function that enhances accuracy during drilling. This spiral drill bit is an essential tool for professionals and DIY enthusiasts who value quality and performance.

• Cobalt-alloyed HSS steel alloy for increased heat resistance
• Precision-ground with a point angle of 135°
• Cross-ground according to DIN 1412 C for self-centering drilling
• Suitable for difficult-to-machine materials such as alloyed steel and gray cast iron
• Cylindrical shank for a secure connection with the drill chuck.