Mines clay in Rimmington, makes soft clay at Rimmington well, builds fireplaces in house.
If your pick breaks it will teleport home, gets some cash from Lumbridge bank, goes to Bob and fixes it.
It also attaches pickaxe head to handle should it break.
It uses house tabs to teleport back, script terminates if there are no tabs in bank.
IMPORTANT: You must have bucket or filled bucket, hammer, saw and pickaxe in inventory or equipped for this to work. Your fireplace must be at the standard location when you first buy the house (north room from the portal). And obviously your house must be at Rimmington.