Title: Boring tool

Abstract: A boring tool is disclosed for machining holes in various materials which comprises a one piece body have a plurality of cutting members secured thereto in circumferentially spaced relationship. The cutting members are designed so as to enable them to be interchanged between a variety of different diameter bodies, the number of such cutting members increasing with greater diameter bodies. The body is provided with mounting surfaces positioned in such a manner so as to automatically accurately locate the cutting elements with respect to the body and to substantially eliminate any shear loading on the fastening elements securing the cutting members thereto thereby enabling use of only a single fastener element to secure each of the cutting members to the body. The cutting members are preferably circumferentially and radially spaced relative to each other so as to substantially balance the cutting loads thereby assuring positive accurate hole formation.

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Inventors: Walton, II, Richard E. (Fallston, MD, US)

Application Number: 079858
Filing Date: 1979-09-28
Publication_date: 1980-12-16
Assignee: Black & Decker Inc. (Newark, DE)
Primary Class(es): 408/213 408/214, 408/225, 408/226
Other Classes:
US Patent Ref:

450908	Apr, 1891	Brede	408/213.
1140988	May, 1915	Kunitz	408/233.
2643692	Jun, 1953	O'Brien	145/126.
3165131	Jan, 1965	Mackey	408/231.
3945753	Mar, 1976	Byers	408/201.
4090807	May, 1978	Stewart	408/203.
4108567	Aug, 1978	Faber	408/226.
4134706	Jan, 1979	Stewart	408/213.

Other Refs:
Primary Examiner: Hinson, Harrison L.
Assistant Examiner:
Attorney: Bloom; Leonard, Murphy; Edward D., Weinstein; Harold