Page 106 - HOLE_MAKING_CATALOG_INCH_2022_P447-P626

ITS BORE BHR Rough Boring Cutting Data Boring Range Boring Range USER GUIDE

Boring Range
4.7-7.9
7.9-19.7
2.7-4.7
.03-.07
.03-.08
.07-.10
.03-.08
.08-.12
.08-.14
Workpiece Hardness
ap (inch)
Overhang
ISO
LDRED/BDRED
Material
HB
395-655
Vc (SFM)
2.5 RE (Radius) .008-.016 .016-.031 .008-.016 .016-.031 .008-.016 .016-.031
425-720
490-720
395-590
395-655
460-720
••• f (IPR) .003-.012 .003-.010 .003-.012 .003-.010 .003-.012 .003-.010
Stainless Ferritic & 4 Vc (SFM) 330-525 295-460 395-590 295-460 N.R. N.R.
Steel Martensitic •• f (IPR) .003-.010 .003-.007 .003-.010 .003-.007
6.3 Vc (SFM) 230-330 165-230
• f (IPR) .003-.008 .003-.007 N.R. N.R. N.R. N.R
2.5 Vc (SFM) 395-655 330-525 395-655 330-525 395-655 330-590
••• f (IPR) .003-.012 .003-.010 .003-.012 .003-.010 .003-.012 .003-.010
Stainless Austenitic 4 Vc (SFM) 330-490 295-460 330-525 295-460 N.R. N.R.
Steel •• f (IPR) .003-.010 .003-.007 .003-.010 .003-.007
6.3 Vc (SFM) 230-330 165-230
• f (IPR) .003-.008 .003-.006 N.R. N.R. N.R. N.R.
M
2.5 Vc (SFM) 425-655 395-590 460-655 395-525 460-655 395-590
••• f (IPR) .003-.012 .003-.010 .003-.012 .003-.010 .003-.012 .003-.010
Cast 4 Vc (SFM) 360-490 295-490 330-525 295-460
Ferritic &
Stainless Martensitic N.R. N.R.
Steel •• f (IPR) .003-.010 .003-.007 .003-.010 .003-.007
6.3 Vc (SFM) 230-330 165-230
• f (IPR) .003-.008 .003-.006 N.R. N.R. N.R. N.R.
2.5 Vc (SFM) 425-590 395-590 395-655 330-525 395-655 330-590
••• f (IPR) .003-.012 .003-.010 .003-.012 .003-.010 .003-.012 .003-.010
Cast 4 Vc (SFM) 330-460 295-460 330-525 295-460
Stainless Austenitic •• N.R. N.R.
Steel f (IPR) .003-.010 .003-.007 .003-.010 .003-.007
6.3 Vc (SFM) 230-625 165-230 N.R. N.R. N.R. N.R.
• f (IPR) .003-.008 .003-.006
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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