Anonymous American Machinist 01-01-2001 Machine of the month: The answer to deep-hole drilling Byline: Anonymous Volume: 145 Number: 1 ISSN: 10417958 Publication Date: 01-01-2001 Page: 42 Type: Periodical Language: English ecently introduced by the agency of TechniDrill Systems Inc.

Anonymous

American Machinist

01-01-2001

Machine of the month: The answer to deep-hole drilling

Byline: Anonymous
Volume: 145
Number: 1
ISSN: 10417958
Publication Date: 01-01-2001
Page: 42
Type: Periodical
Language: English

ecently introduced by the agency of TechniDrill Systems Inc., Kent, Ohio, the 200HP BTA (BoringTrepanning Association) deephole drilling machine is designed for high-production applications. With the BTA drilling design, the coolant is introduced around the drill tube at the crushing head, and chips are evacuated in consequence of the center of the drill. The proces achieves high penetration

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