Cutting tools

Details Cutting tools Cutting tools

1987-04-16

1989-05-30

Scott, Samuel

Dentistry

Apparatus

Tool bit

51206P, A61C 306

Patent

active

048346551

ABSTRACT:
A cutting tool include a shank having a head, a groove which is formed on the outer face portion of the head only in the dextrally spiral form, and hard abrasive grains-attached section formed on the outer face portion of the head except for the groove. The total sum of the width of the groove in the section normal to the axis of the head of the shank is in a range of (1/50 to 2/5).times..pi.D, except for the endmost terminating portion of the head, wherein D is the diameter of the section normal to the axis of the head.

REFERENCES:
patent: 1961891 (1934-06-01), Miller
patent: 2178491 (1939-10-01), Palotce
patent: 3309772 (1967-03-01), Lieb et al.
patent: 3462887 (1969-08-01), Hackman, Jr.
patent: 4083351 (1978-04-01), Greenspan
patent: 4466795 (1984-08-01), Plischka
patent: 4635407 (1987-01-01), Pacini
patent: 4661064 (1987-04-01), Beltramini

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