Harris Style D-85 Gas Mixer Mild Steel Welding Wire The number of acetylene heating

The number of acetylene heating holes on the rosebud varies between sizes

For use with acetylene

The quick connects have B-Size (9/16-18) fittings for use with 1/4 inch welding hose

1/8 vs the standard grinding wheels

Harris Style D-85 Gas Mixer Mild Steel Welding Wire The number of acetylene heatingThe D 85 Harris Mixer fits the Harris Model 85 welding torch handle and can be setup for Acetylene or Mapp and LP, Propane, or Propylene. Acetylene or Mapp gas Setup Options include the Harris 23A90 welding elbow tips (0 10) and heats with the J 63 1 and 2. 8593 Tip Tube and 1390 cone welding tips (0 10) and heats with 1390 HA. LP, Propane, or Propylene Setup Options include 8593 Tip Tube and 1390N welding tips (4N 10N) and heats with 1390 B and H.