The tool kit costs almost 15K for screw compressor. If you do not plan on opening a compressor rebuild shop, I would suggest getting getting a rebuilt one from Carriers rebuild shop in Houston. It even comes with a warranty.
The only tools you need to do the slide valve is a special socet. Witch one depends on the compresser manufacturer. howden or ingersal rand. They are the only tools you need to buy from carrier i have the part # if you want them both are 1200.00 from carrier. If doing an overhaul do not buy there tool kit we had/made all the tools for 500.00. sorry about spelling
Ingersoll vs. Howden:
The last digit of the model number on the compressor nameplate (located on the side of the rotor housing) A “G” in the last digit of the compressor model number identifies an Ingersoll-Rand compressor and an “H” will signify a Howden compressor