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3/4", .75in Round Shank, 90 Degree, Indexable Boring Bar Set, allowing the operator to set positive or negative rake
Chip breaker eliminates long stringer chips, A new cutting edge may be presented by simply, indexing the insert
It is not necessary to remove tool from chuck or tool post
Positive Rake 90Degree Lead, Uses 0.050" key, C6 grade: carbide for steel and alloy steel
1/4" I.C. carbide inserts fit all bars, Radius = 0.015", Key = T8, Shank: 3/4", Piece per set: 8
Bore Depth ranging from 3-3/8" to 5-1/2", Min Bore ranging from 7/16" to 11/16". With TCMT21.51 and TCMT 221 inserts