Drilling tool

Details Drilling tool Drilling tool

1996-06-21

1998-08-04

Bishop, Steven C.

Cutting by use of rotating axially moving tool

Tool or tool with support

Having peripherally spaced cutting edges

408143, 408227, 408713, 408 59, B23B 5100

Patent

active

057884315

ABSTRACT:
The invention relates to a drilling tool (11), comprising a drill shank (22) which has an inner chip space (13) and an outer chip space (14) which extend axially along the drill shank (22) and which in each case accommodate at least one indexable insert (21, 22), the drill shank (12) having a left-hand twist for damping vibrations and increasing the cutting capacity.

REFERENCES:
patent: 190907 (1877-05-01), Goddard
patent: 2360385 (1944-10-01), Anderson
patent: 4340327 (1982-07-01), Martins
patent: 5354156 (1994-10-01), Von Haas et al.

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