KAISER BORING CUTTING CONDITIONS
CENTRIC BORING BAR TYPE ST12 (ø.551"-.630")
Insert
Projection Length
Cutting Speed (SFM)
Cutting Depth (in./ø)
Workpiece
Nose Radius
Grade
1.575 2.362 3.150 3.740 4.331 1.575 2.362 3.150 3.740 4.331 1.575 1.969 2.559 1.575 2.362 3.150 3.740 4.331 1.575 2.362 3.150 3.937 4.724
400 600 500 300 165 400 430 330 230 130 265 200 100 400 430 330 230 130 500 660 600 430 200
.008 .008 .008 .006 .004 .008 .008 .008 .006 .004 .004 .004 .004 .008 .008 .006 .006 .004 .010 .010 .008 .008 .006
.008
T1500A
Carbon Steel Alloy Steel
.004
A1
.008
AC520U
Stainless Steel
.004
A1
Hardened Steel
.008
BN2000
.008
H1 (FN)
Cast Iron
.004
A1
.008
H1 (FLA)
Aluminum
• Red figures are achievable with boring bars made of carbide • Feed Rate Selection information; pg. 500
.004
A1
CENTRIC BORING BAR TYPE ST14 (ø.630"-.709")
Insert
Projection Length
Cutting Speed (SFM)
Cutting Depth (in./ø)
Workpiece
Nose Radius
Grade
1.772 2.559 3.150 3.937 4.724 1.772 2.559 3.150 3.937 4.724 1.772 2.362 2.953 1.772 2.559 3.150 3.937 4.724 1.772 2.559 3.150 3.937 4.724
430 600 500 300 165 400 430 400 265 130 265 200 100 400 430 400 265 130 500 660 600 400 200
.008 .008 .008 .006 .004 .008 .008 .008 .006 .004 .004 .004 .004 .008 .008 .006 .006 .004 .010 .010 .008 .008 .006
.008
T1500A
Carbon Steel Alloy Steel
.004
A1
.008
AC520U
Stainless Steel
.004
A1
Hardened Steel
.008
BN2000
.008
H1 (FN)
Cast Iron
.004
A1
.016
H1 (FLA)
Aluminum
.008
• Red figures are achievable with boring bars made of carbide • Feed Rate Selection information; pg. 500
.004
A1
499
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