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Union Butterfield 47031.1/8 taper shank counterbore, 1-1/8" cutting diameter, High Speed Steel (HSS), 3 flutes, 6-3/8" overall length, ANSI standard. Part number 6210089. 7/8" connection diameter, 1-3/4" maximum depth of cut.
MODEL 47031.1/8
$138.06 Each
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California Prop 65 warningBasic Standard
ANSI
Connection diameter - fractional inch (DCON MS)
7/8
Connection size code machine side (CZC MS)
3
Cutting diameter - fractional inch (DC)
1.1/8
Depth of cut maximum - fractional inch (APMX)
1.3/4
Flute count (NOF)
3
Material
HSS
Overall length - fractional inch (OAL)
6.3/8
Interchangeable pilot-counterbore body with 3-flutes, diameter 1.1/8" with an overall length of 6.3/8" and a flute length of 1.3/4" and MT 3 Morse-taper shank, according to ANSI standard to produce a flat bottom seat for socket-head cap screws with the aid of a pilot with a shank diameter of 5/16" and a maximum pilot guide diameter of 1.1/16", HSS with standard bright finish for machining free machining and plain carbon steel, wrought and copper or copper alloys.
