11-05-2020, 10:37 AM
4PC STUD EXTRACTOR 3/8 AND 1/2" DRIVE IN CASE
Above is copied from A****n, these look like the one I use, which I have had for 40 years or so. It has three vertical rods inside which grip the stud, it works very well -IF the stud is willing to move at all.
You have to get the right one for the diameter of the stud, I couldn't tell from the above ad. if one of these would do, but a bit of research should sort that.
But - snapped studs are almost guaranteed when working on a Seven, and looking at yours I think you need to cater for that.
Which means a good centre punch, a selection of nice new good quality drill bits increasing in size, a set of taps for 5/16" BSF and another for 3/8" when it goes a bit wrong.
Something to guide the drill, though I usually do mine by hand, and something sharp and pointy to pick the threads out of the grooves if you get the drilling right.
And standard and stepped studs as required - or a Helicoil kit if you want to stay standard.
I try heating the block (oven), heating the stud a bit more (blowlamp) and seeing if it moves. Repeat, adding a penetrating fluid as appropriate.
If that doesn't work, sometimes a freezing spray on the stud will do it.
But the most important bit of kit is your being cool with a broken stud .....
Good luck.
Above is copied from A****n, these look like the one I use, which I have had for 40 years or so. It has three vertical rods inside which grip the stud, it works very well -IF the stud is willing to move at all.
You have to get the right one for the diameter of the stud, I couldn't tell from the above ad. if one of these would do, but a bit of research should sort that.
But - snapped studs are almost guaranteed when working on a Seven, and looking at yours I think you need to cater for that.
Which means a good centre punch, a selection of nice new good quality drill bits increasing in size, a set of taps for 5/16" BSF and another for 3/8" when it goes a bit wrong.
Something to guide the drill, though I usually do mine by hand, and something sharp and pointy to pick the threads out of the grooves if you get the drilling right.
And standard and stepped studs as required - or a Helicoil kit if you want to stay standard.
I try heating the block (oven), heating the stud a bit more (blowlamp) and seeing if it moves. Repeat, adding a penetrating fluid as appropriate.
If that doesn't work, sometimes a freezing spray on the stud will do it.
But the most important bit of kit is your being cool with a broken stud .....
Good luck.