Add “A” to beginning of part number when ordering aluminum jaws. Add “P” to end of part number when ordering pointed jaws. Made with 1018 steel or 6061 aluminum.
Ø (Diameter)
Part #
L (Length)
H (Height)
W (Width)
B (Slot Width)
F (Bolt Spacing)
S (Key Slot Width)
I (Screw Size)
M (Thread Size)
8
DM204570
3.00
2.00
1.25
.501
1.438
.746
3/8
1/4-20
DM204002
3.00
3.00
1.25
.501
1.438
.746
3/8
1/4-20
DM204001
3.00
2.25
2.00
.501
1.250
.625
1/2
N/A
DM204003
3.00
3.00
2.00
.501
1.250
.625
1/2
N/A
DM204007
3.437
1.75
1.50
.751
1.438
.743
1/2
1/4-20
DM204008
3.437
3.00
1.50
.751
1.438
.743
1/2
1/4-20
10
DM204009
4.313
2.00
1.75
.751
1.750
.996
1/2
5/16-18
DM204010
4.313
4.00
1.75
.751
1.750
.996
1/2
5/16-18
DM204011
4.00
2.25
2.00
.626
1.750
.751
1/2
1/4-20
DM204012
4.00
4.00
2.00
.626
1.750
.751
1/2
1/4-20
10-12
DM204571
4.00
2.25
1.75
.751
1.750
.996
1/2
5/16-18
DM215806
4.00
4.00
1.75
.751
1.750
.996
1/2
5/16-18
12
DM204015
4.937
2.25
1.75
.751
1.750
.996
5/8
5/16-18
DM204016
4.937
4.00
1.75
.751
1.750
.996
5/8
5/16-18
DM204019
5.50
2.50
2.00
.751
1.750
.996
1/2
5/16-18
DM204020
5.50
4.00
2.00
.751
1.750
.996
1/2
5/16-18
DM215813
5.50
2.50
2.00
.751
1.750
.996
5/8
5/16-18
DM215814
5.50
4.00
2.00
.751
1.750
.996
5/8
5/16-18
DM204021
5.50
2.50
2.00
.751
1.750
.996
5/8
5/16-18
DM204022
5.50
4.00
2.00
.751
1.750
.996
5/8
5/16-18
DM215815
5.00
2.50
1.75
.751
1.750
.996
5/8
5/16-18
DM215816
5.00
4.00
1.75
.751
1.750
.996
5/8
5/16-18
15
DM204023
6.00
2.50
2.25
1.001
2.500
1.488
3/4
3/8-16
DM204024
6.00
4.00
2.25
1.001
2.500
1.488
3/4
3/8-16
DM204572
5.00
3.00
2.25
1.001
2.500
1.488
3/4
3/8-16
DM215818
5.00
5.00
2.25
1.001
2.500
1.488
3/4
3/8-16
DM215823
6.813
3.00
2.25
1.001
2.500
1.488
3/4
3/8-16
DM215824
6.813
5.00
2.25
1.001
2.500
1.488
3/4
3/8-16
DM204025
6.25
3.00
2.25
1.001
2.500
1.488
3/4
3/8-16
DM204026
6.25
5.00
2.25
1.001
2.500
1.488
3/4
3/8-16
18
DM204027
5.00
3.00
2.50
1.001
2.500
1.488
3/4
3/8-16
DM204028
5.00
5.00
2.50
1.001
2.500
1.488
3/4
3/8-16
DM204029
6.00
3.00
2.50
1.001
2.500
1.488
3/4
3/8-16
DM204030
6.00
5.00
2.50
1.001
2.500
1.488
3/4
3/8-16
21-24
DM215825
5.00
3.00
2.25
1.001
3.000
1.488
3/4
3/8-16
DM215826
5.00
5.00
2.25
1.001
3.000
1.488
3/4
3/8-16
DM204031
5.00
3.00
2.50
1.001
3.000
1.488
3/4
3/8-16
DM204032
5.00
5.00
2.50
1.001
3.000
1.488
3/4
3/8-16
DM204033
7.50
3.00
2.50
1.001
3.000
1.488
3/4
3/8-16
DM204034
7.50
5.00
2.50
1.001
3.000
1.488
3/4
3/8-16
24-32
DM204035
6.00
3.00
2.50
1.001
2.625
1.488
3/4
3/8-16
DM204036
6.00
5.00
2.50
1.001
2.625
1.488
3/4
3/8-16
28-36
DM204037
6.50
3.50
3.00
1.188
3.000
1.532
7/8
3/8-16
DM204038
6.50
5.00
3.00
1.188
3.000
1.532
7/8
3/8-16
Square Serrated Key Type — Full Grips
Made with 356 cast aluminum.
Add “C” to beginning of part number when ordering cast iron jaws.
Add “S” to beginning of part number when ordering steel jaws.
Ø (Diameter)
Part #
H (Height)
B (Slot Width)
F (Bolt Spacing)
S (Key Slot Width)
I (Screw Size)
M (Thread Size)
Casting Ø
8
DM8ARFG
2.00
.501
1.438
.746
3/8
1/4-20
8"
DM8ARHFG
4.00
.501
1.438
.746
3/8
1/4-20
8"
204007FG
2.00
.751
1.438
.746
1/2
1/4-20
8"
204008FG
4.00
.751
1.438
.746
1/2
1/4-20
8"
10
DM10ARFG
2.00
.751
1.750
.996
1/2
5/16-18
10"
DM10ARHFG
4.00
.751
1.750
.996
1/2
5/16-18
10"
DM10ARFG58
2.00
.751
1.750
.996
5/8
5/16-18
10"
DM10ARHFG58
4.00
.751
1.750
.996
5/8
5/16-18
10"
12
DM12ARFG
2.375
.751
1.750
.996
1/2
5/16-18
12"
DM12ARHFG
4.00
.751
1.750
.996
1/2
5/16-18
12"
DM12ARFG58
2.375
.751
1.750
.996
5/8
5/16-18
12"
DM12ARHFG58
4.00
.751
1.750
.996
5/8
5/16-18
12"
15
DM15ARFG
3.00
1.001
2.500
1.488
3/4
3/8-16
15"
DM15ARHFG
4.00
1.001
2.500
1.488
3/4
3/8-16
15"
18
DM18ARFG
3.00
1.001
2.500
1.488
3/4
3/8-16
15"
DM18ARHFG
4.00
1.001
2.500
1.488
3/4
3/8-16
15"
Square Serrated Key Type — Hard JaWS
Made with 1018 case hardened steel.
Hard jaws are reversible for OD & ID chucking. All hard jaws are available in one or two step sets. All part #’s listed below are two step sets.
Ø (Diameter)
Part #
L (Length)
H (Height)
W (Width)
B (Slot Width)
F (Bolt Spacing)
S (Key Slot Width)
I (Screw Size)
M (Thread Size)
10
DM12AR
3.781
2.50
1.75
.751
1.750
.996
3/8
5/16-18
12
DM12AR58
3.781
2.50
1.75
.751
1.750
.996
5/8
5/16-18
15-18
DM18AR
4.75
3.00
2.25
1.001
2.500
1.488
3/4
3/8-16
21-24
DM21AR
6.00
3.50
2.50
1.001
3.000
1.488
3/4
3/8-16
28-36
DM28AR
6.50
3.50
3.00
1.188
3.000
1.532
7/8
3/8-16
Square Serrated Key Type — Jaw Nuts
Ø (Diameter)
Part #
L (Length)
H (Height)
W (Width)
F (Bolt Spacing)
M (Thread Size)
T1 (Tongue Width 1)
E (Heel Height)
8
DM8CCJ
2.11
.996
.993
1.438
1/2-13
.750
.376
10-12
DM10/12CCJ
2.43
1.000
1.000
1.750
1/2-13
.750
.375
12
DM12CCJ
2.50
1.000
1.000
1.750
5/8-11
.750
.375
15-18
DM15/18JN
3.75
1.250
1.250
2.500
3/4-10
1.000
.438
21-24
DM21CCJ
4.50
1.250
1.250
3.000
3/4-10
1.000
.438
28-36
DM28CCJ
4.50
1.250
1.562
3.000
7/8-9
1.187
.438
Square Serrated Key Type — Square Serrated master key
