HTP Spot Weld Clean Up - HTP Spot Mill

We milled this spot weld extra deep to reveal how the spot weld will appear when it is undone.

It's always a good idea to work in a comfortable position with plenty of room to move. NOtice that the '64 Chevy C-10 roof section has been propped up on bricks to gain better acess and allow for a positive downforce to be applied.

These two untouched spot welds are among a series of spot welds on the inside of this C-10 doorskin.

Here the HTP Spot Mill has completed its job of milling the factory spot weld out and separating the two layers of steel tha adhere the doorskin.

By twisting the depth gauge/brace vertically the HTP Spot Mill is fully supported, aimed directly towards the spot weld, and ready for a clean job.

In this photo we buzzed the spot weld's surface witht he HTP Spot Mill to reveal how the cutting bit's pilot tip and flat cutting surface begin the cutting process.

A key to long life for the HTP Spot Mill and its cutting bit is generous internal and external lubrication of the drill motor and the cutting bit's working surface. We used Royal Purple Maxifilm to handle both applications.

As the cutting process evolvoes, the cut surface remains perfectly flat.

Here are the original two spot welds after the cutting process has been completed. Thanks to HTP for creating a great tool to add to our collection of trusted metal fabricating equipment.

We stuck a fillister-blade screwdriver into the hole to open up the area to show readers how good the HTP Spot Mill cuts through a spot weld.