Description

90° countersinks and deburring countersinks set "Advanced" Design: Similar to DIN 335-C. New, innovative relief grinding process. Optimised machining geometry resulting in up to 25% longer tool life for bright surface; even up to 40% for TiAIN coated surface. With straight, u-shaped flute length and flutes ground from solid. Also provided with cutting and clearance angles for the most common materials. Supplied in a robust, high quality plastic cassette with automatic countersink setup function when opened. Application: Suitable for universal chatter and burr-free drilling, countersinking and deburring work for countersunk screws DIN 963, DIN 964, DIN 965 and DIN 966 in one step. Please note the large countersink range! The excellent cutting properties and easy machining process result from the cone-shaped relief grinding on the coat and angle of rake. The countersink achieves the best results with the strongest feed and lowest cutting speed. Note: Sufficient supply of coolant is essential for uncoated designs.