You cannot not get another TM-28 [Dig].
However you can get your Pokemon to learn dig by breeding it with a Pokemon that learns it through levelling-up.
mAvOoP
Don't panic! TM28 (dig) can be bought. But first, which game are you playing because it depends.
A: There actually might be a way to get TM 28 Dig on Pokemon Emerald, but then again, there might not, because I'm not really sure, but it won't take much effort. If you go to the FOSSIL MANIAC'S HOUSE just outside of Fallarbor Town and go inside, there should be a little boy inside who is right next to the tunnel entrance where the FOSSIL MANIAC is. If you talk to him, then he should give you TM28 Dig. If he doesn't, then there isn't a way unless you trade from another game, such as Sapphire or Ruby Version, because I'm certain that TM28 Dig is in those games. But then again, you don't really need it if you want to raise a Pokemon that'll learn it eventually, like Trapinch or (maybe) Nincada.
Rhydon does not learn Dig by naturally leveling up. It learns Dig by using the TM28 in Pokemon X, Y, Alpha Sapphire, and Omega Ruby.
Pinsir cannot learn Dig by leveling up. You will need to give it the TM28 Dig to teach it.
You can use dig when you get inside on the brallie, you click on it and have the 2 Pokemon 1 in front and the other one in the backfirst u have 2 have a relicanth(found at the seafloor(u have 2 use dive in the DARK Blue spots in the water)And a Wailord(wailmer that evolves at level 40) and the walk up 2 the last bralie wall in chamber number 2 and then click on it the it causes an earthquake(don't know how but it does) Registeel: fly 2 lillycove city and go to route 120 and find the cave. Go to the middle and use FLASH, go in the cave and Registeel will be there.Regi rock: go 2 the dessert and find the cave at the bottem, go in and go 2 the top and go down 2 times then left 2 times and use ROCK SMASH and the cave with Regirock opens.Regice: go 2 deford and SURF up and find the cave, go in and go 2 the top,walk 1 lap around the entire room and don,t mess up or u will have 2 do it again. when u complete the lap the cave 2 Regice will open.CJ Lough (Pokemon Master)First to enter into Sealed Chamber, you will need Surf, and Dive. The first Chamber is easy, bring a pokemon that knows Dig. read the braille message of the far back dunghill the center one that is. after reading use Dig. You will be faced with another Chamber.One the second Chamber, you need to catch a relecanth. and evolve a Whailmer. Relecanth can be found underwater in a seaweed area. if you don't find it at first keep trying because its a rare pokemon. To evolve Whailmer you need to get it up to level 40 and it will evolve into a Whailord. So now that you have both assign Whailord First, and put Relecanth Last. There should be an earthquake which will open up 3 places. Those 3 places will lead you to the Regis.
tm28= Dig: found at Route 114
Pokemon Ruby/Sapphire/Emerald = Buy another at lillycove department store. Pokemon Soul Silver/Heart gold = Buy another at Celadon city or Goldenrod city dep. store.
You can get TM28 (Dig) from the Fossil Maniac. That is in the house west of Fallarbor Town.
tm28 contains Dig
its in a house up top. go inside and talk to the little boy
I bought it at lilycove department store
You can get the TM28 (Dig) on Route 214 in the Ruin Maniac Cave in Pokemon Diamond.
You can give specific Pokemon TM28 Dig that you get from that town with all those ashes, and I know Nincada learns it naturally if you don't evolve it (I think it learns it Level 45).
Route 114
Route 214
First of all,tm28 is dig.it is found in cerulean city.You get it after you beat the rocket guy behind the house.
National Park and its hard to get