Use a two hand grip on the rotary tool when using a cut-off wheel. Keeping your gutters free of leaves and debris will keep water draining and help prevent the damage that standing water can do to your gutters.
Grind centering holes in the rivets that hold the gutter in place with the 997 grinding stone. Next, drill out the rivets with the 628 drill. Recommended speed: 25,000 rpm.
After removing the old corner, clear away the old sealant with the 144 high-speed cutter. Recommended speed: 25,000 rpm.
Position the new corner and drill holes for the pop rivets. When drilling, try to use the same holes from the old gutter corner.
Use a pop-rivet tool to install new, color-matching rivets. Then apply sealant to the joints (sparingly) so water doesnÕt become trapped.