Page 105 - HOLE_MAKING_CATALOG_INCH_2022_P447-P626

USER GUIDE

BHR Rough Boring Cutting Data
Boring Range Boring Range Boring Range ITS BORE
.7-1.1 1.1-2.0 2.0-2.7
Workpiece Hardness Overhang ap (inch) .02-.04 .04-.07 .02-.04 .04-.07 .02-.06 .05-.08
ISO Material HB LDRED/BDRED RE (Radius) .008 .016 .008-.016 .016 .008-.016 .016-.031
2.5 Vc (SFM) 330-490 360-425 395-525 330-490 395-525 360-525
••• f (IPR) .003-.006 .002-.005 .003-.007 .002-.005 .003-.010 .003-.007
Stainless Ferritic & 4 Vc (SFM) 295-425 295-395 330-460 295-460 330-490 260-395
Steel Martensitic •• f (IPR) .003-.005 .002-.004 .003-.005 .002-.004 .003-.007 .003-.005
6.3 Vc (SFM) 195-295 165-230 195-230 165-230 230-330 165-230
• f (IPR) .002-.004 .002-.004 .002-.005 .002-.004 .002-.006 .003-.006
2.5 Vc (SFM) 360-425 330-425 395-490 360-460 360-525 330-490
••• f (IPR) .003-.006 .002-.005 .003-.007 .002-.005 .003-.010 .002-.005
Stainless Austenitic 4 Vc (SFM) 260-360 260-360 295-425 295-395 330-490 295-425
Steel •• f (IPR) .003-.005 .002-.004 .003-.005 .002-.004 .003-.007 .002-.004
6.3 Vc (SFM) 195-295 165-230 195-295 165-230 230-330 165-230
• f (IPR) .002-.004 .002-.004 .002-.005 .002-.004 .002-.006 .002-.004
M
2.5 Vc (SFM) 295-425 330-425 395-490 360-460 395-525 330-490
••• f (IPR) .003-.006 .002-.005 .003-.007 .002-.005 .003-.010 .002-.005
Cast 4 Vc (SFM) 230-360 260-360 295-425 295-395 330-490 295-425
Ferritic &
Stainless Martensitic
Steel •• f (IPR) .003-.005 .002-.004 .003-.005 .002-.004 .003-.007 .002-.004
6.3 Vc (SFM) 195-295 165-230 195-295 165-230 230-330 165-230
• f (IPR) .002-.004 .002-.004 .002-.005 .002-.004 .002-.006 .002-.004
2.5 Vc (SFM) 260-395 230-360 330-490 295-460 360-490 330-490
••• f (IPR) .003-.006 230-330 .003-.007 .002-.005 .003-.010 .002-.005
Cast 4 Vc (SFM) 230-330 230-330 260-425 230-395 295-460 295-425
Stainless Austenitic ••
Steel f (IPR) .003-.005 .002-.004 .003-.005 .002-.004 .003-.005 .002-.004
6.3 Vc (SFM) 195-295 165-230 195-295 165-230 230-330 165-230
• f (IPR) .002-.004 .002-.004 .002-.005 .002-.004 .002-.006 .002-.004
N.R. = Not Recommended
Stability
••• Good
•• Normal
• Poor

Ø
Ø Ø

A A
A1 A
IHSR
IHSR IHSR PLT IHSR
IHCR IHSR
LDRED

BDRED
In case of a single or a stepped boring cutter configuration, only half the feed should be applied.

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