Combined drill and countersinks(center drill bits) are designed with 118° Point Angle and a 60° Countersink Included Angle with Spiral Flutes. Combined drill and countersinks(center drill bits) are used for center holes in work pieces for additional manufacturing operations. Available in HSS, COBALT, and CARBIDE. The Bell type is furnished with a 118° Point Angle and a 60° /120° Included angle. Combined drill and countersinks(center drill bits) also available in an extra long series.

Following standard we supply:

BS 328, ISO 866, DIN 333, GOST 14952