Aloris ATB Series threading bars can be used for internal right or left hand threading. Available in five sizes, these bars accommodate standard triangular-shaped throwaway threading inserts in a hardened seat.
The ATB Series shank has three flat sides specially designed for use in Aloris boring bar holders # 1, # 2, # 13, #4 and # 41. They may also be used in any Aloris boring bar holder. Excellent for CNC machines.
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