Miller MIGMATIC 220 Owner's Manual page 54

NOTE
Wire Diameter
Metric
0.6/0.8 mm* 0.023/0.030 in
0.8/1.0 mm* 0.030/0.035 in
1.0/1.2 mm* 0.035/0.045 in
0.8/1.0 mm** 0.035/0.045 in
1.2/1.6 mm** 0.045/0.065 in
1.0/1.2 mm* 0.035/0.045 in
* Available in: steel, 30 mm diameter
**Available in: nylon, 30 mm diameter
OM-246 691 Page 50
Table 7-1. Drive Roll And Wire Guide Kits (2 Roll Models)
Base selection of drive rolls upon the following recommended usages:
1. V-Grooved rolls for hard wire.
2. U-Grooved rolls for soft and soft shelled cored wires.
3. U-Cogged rolls for extremely soft shelled wires (usually hard surfacing types).
4. V-Knurled rolls for hard shelled cored wires.
5. Drive roll types may be mixed to suit particular requirements (example:
V-Knurled roll in combination with U-Grooved).
Fraction Decimal
0.023/0.030 in
0.030/0.035 in
0.035/0.045 in
0.030/0.035 in
0.035/0.065 in
0.035/0.045 in
Drive Roll
Part No. Type
156053051 V
156053109 V
156053052 V
156053053 U
156053054 U
1560531110 V-K
Wire Guide
Inlet
156090022