Article From: 4/27/2007 Production Machining
Iscar's family of interchangeable carbide drill heads has been enhanced again with the addition of the Chamdrill Jet. The drill heads range in sizes from the 0.394" through 0.0783" hole range sizes. The drills also feature frontal cooling.
The drilling depth-to-diameter ratios are 3xD and 5xD. All drill bodies have internal coolant holes with the coolant ports located adjacent to the cutting edge for the most efficient flushing and chip evacuation. The drill heads also feature large radial stoppers to bear the tensional cutting forces.
IPD, IDM and IDN drill head geometries are available in 0.004" drill diameter increments. IDK drill head geometries are currently available in whole and mid sizes.
The head geometries were designed according to the material to be cut, in order to provide optimal chip evacuation, drilling head life, surface finish and reliability, the company says. Chamdrill Jet drill bodies have a 30-degree flute helix on the 3xD drills and 25-degree flute helix on the 5xD drills.
