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OPERATION

1.

  Determine a plan of action and use a scribe to mark where each spot weld should be placed 

on the top panel. Clean all metal surfaces which will be in contact with a fl ap disc. Be sure to 
remove all paint, scale, oil, etc.

2.

  If using a MIG135 or most other 110V welders, it is necessary to drill or punch a hole in the top 

panel being spot welded. Use the included 3/16” drill bit to drill a hole through the TOP PANEL 
ONLY. If using a MIG175 or most other 220V welders in most cases you will not need to drill or 
punch a hole in the top panel.

3.

  Use the supplied Spot Weld Pliers to 

clamp the top and bottom panels being 
spot welded together. Put the U shape 
of the pliers around the area to be spot 
welded. If using the MIG135, center the 
U shape around the hole drilled in the 
previous step. See the image at right for 
reference.

4.

  Place the “standoffs” of the Spot Weld 

Nozzle in the ‘U’ of the clamp.

5.

  Hold the trigger to activate the arc for 

2-3 seconds. Adjust the time accordingly 
after trying on test panels.

6.

  Release and pull back the torch to reveal the spot weld. If possible make sure that the spot 

weld fully penetrated before continuing on.

7.

  Continue on to fi nish all of the predetermined spots for the welds. It is benefi cial to move 

around when welding rather than doing the spot welds all consecutively as it could overheat the 
panel and causing warping.

Spot Welding in the past had primarily been done by large resistance welders but can now be 
achieved with your MIG welder and this 

Spot Welding Kit

 from Eastwood. Spot welding is accom-

plished by clamping two panels together and fusing them with a number of welds sequentially-placed 
rather than a continuous bead to hold the panels together. This kit is designed to be used with Tweco

®

 

Style MIG torches.

WARNINGS

•  Follow all safety measures outlined in your welder’s instruction manual.
•  Do not touch nozzle or pliers while welding.
•  Use caution when touching pliers as they may be hot and could cause burns.
•  Always use a minimum Shade 10 welding helmet, welding gloves, long sleeve shirt and pants.

SPECIFICATIONS

Spot Weld Kit includes:

•  Spot Weld Pliers
•  Spot Weld Nozzle
•  3/16” Double-Ended Drill Bit 
• Instructions

SET UP

1.

  Unplug MIG welder and remove gas nozzle on the end of the torch.

2.

  Install the supplied Spot Weld Nozzle. Once the Nozzle is installed the welder can be plugged 

back in. 

NOTE:

 This Nozzle is designed to fi t the Eastwood MIG Welders but will also work on 

any other Tweco Style Torch. The Spot Weld Nozzle “standoffs” do not have to be oriented in 
any particular position to function properly.

3.

  Before using on your project it is necessary to test technique and machine settings on 

scrap metal. The following suggestions are recommendations for the initial settings on the 
Eastwood MIG Welders, but you may have to fi ne-tune the voltage or wire speed to achieve 
perfect spot welds.

Eastwood MIG135 Suggested Settings

Eastwood MIG175 Suggested Settings

Material Thickness

18 Ga.

20 Ga.

Arc Volts

J

I

Wire Speed

7

7

Material Thickness

18 Ga.

20 Ga.

Arc Volts

J

J

Wire Speed

9

6

Standoff

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