Technical Information
Stock Tools
"Forward Counterbores"
and "Back Counterbores"
For Recessing The Heads of SHCS’s.
|
Forward Counterbore Information
|
Forward Counterbore Tools |
|
Coolant Style |
1/26/2008 |
VIT
TOOL # |
CAP
SCREW |
HOLE DIA.
MIN. |
COUNTERBORE
DIA. |
REACH
MAX. |
SHANK
Dia. x Length |
INSERT |
|
V4764 |
M6 |
0.118 |
0.432 |
1.200 |
0.500 x 2.000 |
CPGT 1.51.21 (1) |
|
V7900 |
1/4" |
0.266 |
0.438 |
1.250 |
0.500 x 2.000 |
CPGT 1.51.21 (1) |
|
V7901 |
5/16" |
0.328 |
0.531 |
1.500 |
0.500 x 2.000 |
CPGT 1.51.21 (1) |
|
V4765 |
M8 |
0.240 |
0.552 |
1.500 |
0.500 x 2.000 |
CPGT 1.51.21 (1) |
|
V7902 |
3/8" |
0.391 |
0.625 |
1.625 |
0.750 x 2.500 |
CPGT 1.51.21 (2) |
|
V7922 |
M10 |
0.413 |
0.679 |
1.560 |
0.750 x 2.500 |
CPGT 1.51.21 (2) |
|
V4767 |
M12 |
0.315 |
0.749 |
1.930 |
0.750 x 2.500 |
CPMT 21.51 (2) |
|
V3764 |
1/2" |
0.375 |
0.781 |
2.000 |
0.750 x 2.500 |
CPMT 21.51 (2) |
|
V7903 |
1/2" |
0.516 |
0.813 |
2.125 |
0.750 x 2.500 |
CPMT 21.51 (2) |
|
V4768 |
M16 |
0.276 |
0.987 |
2.300 |
0.750 x 2.500 |
CPMT 32.51 (2) |
|
V7904 |
5/8" |
0.641 |
1.000 |
2.500 |
0.750 x 2.500 |
CPMT 32.51 (2) |
|
V7905 |
3/4" |
0.766 |
1.188 |
2.750 |
1.000 x 3.000 |
CPMT 32.51 (2) |
|
V4770 |
M24 |
0.748 |
1.463 |
2.880 |
1.000 x 3.000 |
CPMT 32.51 (2) |
|
V7926 |
M24 |
0.964 |
1.476 |
2.690 |
1.000 x 3.000 |
CPMT 32.51 (2) |
|
V3767 |
1" |
0.875 |
1.532 |
2.500 |
1.000 x 3.000 |
CPMT 32.51 (2) |
|
V7906 |
1" |
1.016 |
1.625 |
2.750 |
1.000 x 3.000 |
CPMT 32.51 (2) |
ANSI/ASME B18.3-1988.
Back Counterbore Information
| |
|
|
|
1/26/2008 |
|
VIT
TOOL # |
CAP
SCREW |
HOLE DIA.
MIN. |
TOOL HEAD
DIA. |
COUNTERBORE
DIA. |
REACH
MAX. |
SHANK
Dia. x Length |
OFFSET |
INSERT |
|
V1940 |
1/4" |
0.266 |
0.250 |
0.406 |
0.609 |
0.500 x 2.000 |
0.094 |
CDHB 1.20.61 |
|
V4757 |
M6 |
0.252 |
0.236 |
0.432 |
0.472 |
0.500 x 2.000 |
0.098 |
CDHB 1.20.61 |
|
V7820 |
1/4" |
0.266 |
0.250 |
0.438 |
0.609 |
0.500 x 2.000 |
0.094 |
CDHB 1.20.61 |
|
V7821 |
5/16" |
0.328 |
0.313 |
0.531 |
0.781 |
0.500 x 2.000 |
0.109 |
CDHB 1.20.61 |
|
V7911 |
M8 |
0.413 |
0.394 |
0.561 |
0.689 |
0.500 x 2.000 |
0.123 |
CDHB 1.20.61 |
|
V7822 |
3/8" |
0.391 |
0.375 |
0.625 |
0.937 |
0.750 x 2.500 |
0.125 |
CPGT 1.51.21 |
|
V7912 |
M10 |
0.413 |
0.394 |
0.679 |
0.906 |
0.750 x 2.500 |
0.143 |
CPGT 1.51.21 |
|
V1943 |
1/2" |
0.516 |
0.500 |
0.781 |
1.281 |
0.750 x 2.500 |
0.157 |
CPMT 21.51 |
|
V7823 |
1/2" |
0.516 |
0.500 |
0.813 |
1.281 |
0.750 x 2.500 |
0.157 |
CPMT 21.51 |
|
V7824 |
5/8" |
0.641 |
0.625 |
1.000 |
1.625 |
1.000 x 3.000 |
0.188 |
CPMT 32.51 |
|
V1945 |
3/4" |
0.766 |
0.750 |
1.156 |
1.937 |
1.000 x 3.000 |
0.203 |
CPMT 32.51 |
|
V7825 |
3/4" |
0.766 |
0.750 |
1.188 |
1.937 |
1.000 x 3.000 |
0.219 |
CPMT 32.51 |
|
V7916 |
M24 |
0.964 |
0.945 |
1.476 |
2.441 |
1.250 x 3.000 |
0.266 |
CPMT 32.51 |
|
V7826 |
1" |
1.016 |
1.000 |
1.625 |
2.625 |
1.250 x 3.000 |
0.313 |
CPMT 32.51 |
ANSI/ASME B18.3-1988.
SUGGESTED
STARTING POINTS
Forward Counterbore |
Material
Cutting |
SFM |
IPR |
| Iconel 625 / Ti 6AL-4V |
80-110 |
.004 - .012 |
| 17-4 pH Rc 40 |
200 - 300 |
.004 - .012 |
| 300 Series Stainless |
200 - 300 |
.004 - .012 |
| 4130 Rc 40 |
200 - 400 |
.005 - .012 |
| Cast-Iron |
250 - 400 |
.005 - .016 |
| Low Carbon |
300 - 700 |
.005 - .012 |
| Aluminum & Brass |
800 - 1400 |
.006 - .020 |
Start Conservatively, Then Adjust to Suit Application.
The ranges provided are under ideal conditions. Please modify speed(s) & feed(s) to
suit your application. For further assistance call (800) 639-1616 |
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Counterbores | Centering
Drills | Custom Tooling
Custom Back Spot Facing
331 B Bryce Blvd., Suite 6, Fairfax, VT 05454
800-834-9396 | 802-752-2002 | FAX
802-752-2500
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Copyright © 2008 Vermont
Indexable Tooling, Inc. ALL RIGHTS RESERVED. |