frz1197 128 Posted May 25, 2011 Report Share Posted May 25, 2011 anyone have any tips on drilling out the two spot welds on a 308? I all ready went through two drill bits trying to drill out the two rivets. Also, how do people tend to plug the holes from the spot welds. Quote Link to post Share on other sites
1liter 20 Posted May 25, 2011 Report Share Posted May 25, 2011 Don't drill completly through. Try using a chisel and pounding in between the sheet metal and spot weld. Quote Link to post Share on other sites
Scott Kenny 144 Posted May 26, 2011 Report Share Posted May 26, 2011 You only need to drill through the head of the rivet, maybe 1/8". Use a smaller bit than the rivet, then use a hammer and punch to crack the head off the rivet. Don't worry about hurting the steel, that technique is safe to use on aircraft-grade aluminum half the thickness of your receiver. And use oil on the drill bits... Quote Link to post Share on other sites
TackDriver 1 Posted May 26, 2011 Report Share Posted May 26, 2011 You must not be cussin' right. With Russian steel, especially rivets and welds, you have to cuss well. Oil on the bit, and a beer on the workbench will speed up the process too. Quote Link to post Share on other sites
DoubleTapDrew 4 Posted May 26, 2011 Report Share Posted May 26, 2011 You need to use cobalt steel drill bits since those ruskie rivets are hard and will wear out standard bits quick. Went thru a couple myself finding that out. On the spot welds I didn't drill them out, I used the dremel with a sanding wheel (a file would work too, just take longer) to grind down the Klinton plate over the spot welds until it was thin enough to bend and break off, then filed down any boogers left over from the spot welds flush with the receiver. That way you don't leave extra holes in the receiver where the spot welds were. Repainted the bottom with black stove paint. Quote Link to post Share on other sites
frz1197 128 Posted May 28, 2011 Author Report Share Posted May 28, 2011 I ended up grinding the plate around the welds down. Broke the plate off, then just ground down the rest of the weld. what really sucked was the trigger guard I got from css didn't match the existing holes. Had to snowman the fwd most hole and file it to a slot. Quote Link to post Share on other sites
MgcShroomz 0 Posted May 29, 2011 Report Share Posted May 29, 2011 I used a grinder. The 1st weld was easy to drill out for some reason, but the second weld wasn't having it! Grind it until you can pry the plate up to break it off, I then used a precision hand file to slowly file off the remaining weld flush to the receiver. Good luck! Quote Link to post Share on other sites
Mephis 82 Posted May 30, 2011 Report Share Posted May 30, 2011 I ended up grinding the plate around the welds down. Broke the plate off, then just ground down the rest of the weld. what really sucked was the trigger guard I got from css didn't match the existing holes. Had to snowman the fwd most hole and file it to a slot. You're supposed to drill a new hole in the front for that trigger guard... Quote Link to post Share on other sites
MgcShroomz 0 Posted May 30, 2011 Report Share Posted May 30, 2011 I ended up grinding the plate around the welds down. Broke the plate off, then just ground down the rest of the weld. what really sucked was the trigger guard I got from css didn't match the existing holes. Had to snowman the fwd most hole and file it to a slot. You're supposed to drill a new hole in the front for that trigger guard... +1 How'd the slot work out for you? Quote Link to post Share on other sites
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