Welcome to my how to video. Let me guess, you stripped out the hex screw and couldn’t figure out how to remove the shower handle? My DELTA shower model is called “Monitor” installed in 2001. I stripped out the hex screw while trying to remove the shower handle. It took me several days of asking around my local hardware store. So I decided to drill out the screw to get to the handle. Start with 1/8″ – 6″ long drill bit for metal. You need a longer drill bit to get to the screw. After you’ve drill through the screw, you may want to use a larger diameter bit and gradually move up until you remove the handle. It took around 30 mins for me to complete this task. Most likely you will damage the valve stem while doing this. I strongly suggest that you replace the whole cartridge. You will need a new handle (model: H79) and cartridge (model: RP19804).
I’d like to thank the DELTA FAUCET customer service in Canada for getting me the right replacement parts.