Deep hole drilling system

AMEC's T-A replaceable insert technology, allows deep holes to be produced using a single high performance indexable insert, rather than the often complex array of multiple smaller inserts used in non-AMEC systems. In addition to balancing the cutting forces and allowing higher penetration rates to be achieved, the T-A range enables alternative insert geometries to be used in the same head design, giving greater versatility when deep drilling different materials. With diameters ranging from 12.95 mm to 47.80 mm, the flexibility of the BT-A deep hole drilling system is enhanced further as customers can also use inserts from the extensive and fully interchangeable GEN2 T-A inserts range. The unique BT-A tool design uses two large ports in the sides of the head, this not only allows rapid and unrestricted evacuation of swarf by the flushing coolant but also enables a higher mass of metal to support the cutting insert in the nose of the tool, giving greater rigidity and durability. Also, the head is around three times longer than most other types of BTA style deep drilling tools which, when combined with its extended laser clad bearing areas, delivers improved straightness in holes up to 2.6 m deep. The new BT-A system uses standard location threads giving the drills full compatibility and interchangeability with boring tubes used on BTA-STS applications, diameter range is from 794 to 811 (11.00 mm to 43.00 mm outside diameters).