Metal tools and implements – making – Blank or process – Drill
Patent
1991-03-01
1992-11-03
Parker, Roscoe V.
Metal tools and implements, making
Blank or process
Drill
76DIG11, 76DIG12, B21K 502
Patent
active
051598574
ABSTRACT:
In an improved single piece earth boring bit of the type having a body including a solid bit face on one end and a shank on the opposite end for connection in a drill string, an improved cutting structure having diamond filled compacts used as a wear resistant inserts. The improved compacts have hard metal jackets and integrally formed diamond cores. The improved compacts are advantageously used as wear resistant inserts in the gage and heel rows of the bit.
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Gunter Jr. Charles D.
Hughes Tool Company
Parker Roscoe V.
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