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GTH SERIES - ID/OD/FG Holders
Maximum Depth for Internal, External and Face Grooving Applications
Cutting Widths .25" to 1.125
  • Inserts are securely clamped in position in dovetail recess.
  • Inserts will not move when retracting from cut.
  • No trapping of chips under clamp.
  • Inserts will repeat within (± .001) on width, depth and side location.
  • Inserts can be sharpenedby grinding top.
GTH SERIES GROOVING HOLDERS
Holder No.
Group
Cutting Width
Groove Depth
Holder Size
(W x H x L)
X Dimension
Inch
Price Code
Inch (± .001)
MM (± .025)
Inch (± .001)
MM (± .025)
Gth-12
1
2
3
.250 - .375
.376 - .555
.556 - .719
.634 - 9.51
9.54 - 14.08
14.11 - 18.24
.500
1.000
1.250
12.69
25.40
31.72
.75" x .75" x 6"
.672
1.031
1.344
1900
Gth-16
1
2
3
4
5
.250 - .375
.376 - .555
.556 - .719
.720 - .940
.941 - 1.13
.634 - 9.51
9.54 - 14.08
14.11 - 18.24
18.27 - 23.85
23.88 - 26.68
.500
1.000
1.250
1.500
1.500
12.69
25.40
31.72
38.07
38.07
1" x 1" x 6"
.672
1.031
1.344
1.656
1.968
1910
Gth-20
1
2
3
4
5
.250 - .375
.376 - .555
.556 - .719
.720 - .940
.941 - 1.13
.634 - 9.51
9.54 - 14.08
14.11 - 18.24
18.27 - 23.85
23.88 - 26.68
.500
1.000
1.250
1.500
1.500
12.69
25.40
31.72
38.07
38.07
1.25" x 1.25" x 7"
.672
1.031
1.344
1.656
1.968
1920
Gth-24
1
2
3
4
5
.250 - .375
.376 - .555
.556 - .719
.720 - .940
.941 - 1.13
.634 - 9.51
9.54 - 14.08
14.11 - 18.24
18.27 - 23.85
23.88 - 26.68
.500
1.000
1.250
1.500
1.500
12.69
25.40
31.72
38.07
38.07
1.5" x 1.5" x 7"
.672
1.031
1.344
1.656
1.968
1930
Gth-44
1
2
.250 - .375
.376 - .555
.634 - 9.51
9.54 - 14.08
.500
1.000
12.69
25.40
.5" x 1" x 6"
.672
1.031
Gth-64
1
2
3
4
5
.250 - .375
.376 - .555
.556 - .719
.720 - .940
.941 - 1.13
.634 - 9.51
9.54 - 14.08
14.11 - 18.24
18.27 - 23.85
23.88 - 26.68
.500
1.000
1.250
1.500
1.500
12.69
25.40
31.72
38.07
38.07
.75" x 1" x 6"
.672
1.031
1.344
1.656
1.968
1950
Gth-65
1
2
3
4
5
.250 - .375
.376 - .555
.556 - .719
.720 - .940
.941 - 1.13
.634 - 9.51
9.54 - 14.08
14.11 - 18.24
18.27 - 23.85
23.88 - 26.68
.500
1.000
1.250
1.500
1.500
12.69
25.40
31.72
38.07
38.07
.75" x 1.25" x 6"
.672
1.031
1.344
1.656
1.968
1960
Gth-66
1
2
3
4
5
.250 - .375
.376 - .555
.556 - .719
.720 - .940
.941 - 1.13
.634 - 9.51
9.54 - 14.08
14.11 - 18.24
18.27 - 23.85
23.88 - 26.68
.500
1.000
1.250
1.500
1.500
12.69
25.40
31.72
38.07
38.07
.75" x 1.5" x 7"
.672
1.031
1.344
1.656
1.968
1970
Gth-85
1
2
3
4
5
.250 - .375
.376 - .555
.556 - .719
.720 - .940
.941 - 1.13
.634 - 9.51
9.54 - 14.08
14.11 - 18.24
18.27 - 23.85
23.88 - 26.68
.500
1.000
1.250
1.500
1.500
12.69
25.40
31.72
38.07
38.07
1" x 1.25" x 7"
.672
1.031
1.344
1.656
1.968
1980
Gth-86
1
2
3
4
5
.250 - .375
.376 - .555
.556 - .719
.720 - .940
.941 - 1.13
.634 - 9.51
9.54 - 14.08
14.11 - 18.24
18.27 - 23.85
23.88 - 26.68
.500
1.000
1.250
1.500
1.500
12.69
25.40
31.72
38.07
38.07
1" x 1.5" x 7"
.672
1.031
1.344
1.656
1.968
1990
GTH SERIES CLAMPS & CLAMP SCREWS
Clamp No.
Group No.
For Cutting Width
Depth of Groove
Spare Clamps Price Code
Clamp Screws Price Code
Inch (± .001)
MM (± .025)
Inch
MM
CL-20 or 25
1
.250 - .375
.634 - 9.51
.500
12.69
200
300
CL-30 or 37
2
.376 - .555
9.54 - 14.08
1.000
25.40
200
300
CL-50
3
.556 - .719
14.11 - 18.24
1.250
31.72
201
302
CL-62
4
.720 - .940
18.27 - 23.85
1.500
38.07
202
302
CL-75
5
.941 - 1.13
23.88 - 26.68
1.500
38.07
203
302
Pivot pin inserts




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