The Grind Boots allowed Ratchet not only to grind on Grindrails, but also on poles, train lines, and telephone poles.
In Ratchet & ClankEdit
The Grind Boots were invented for Chairman Drek by the gadget engineer Fred. When Ratchet saved his life on Nebula G34, Fred sold him the boots at a cost of 2000 bolts, which was the employee discount.
Ratchet & Clank: Going CommandoEdit
Of all the weapons and gadgets from the previous game, the Grind Boots along with the Swingshot were the two gadgets located in Clank's Apartment in Megapolis, Endako. Ratchet took these two gadgets just in case; he needed them. The Grind Boots worked pretty much the same way as in the first game
Unknowingly how, Ratchet aquired the Grind Boots back after their absence in Ratchet & Clank: Up Your Arsenal. They still worked the same way as they did in the previous games.
Ratchet & Clank: Size MattersEdit
The Grind Boots returned once again; where Ratchet usually used them while going inside something small via Shrink Ray.
Ratchet & Clank Future seriesEdit
The Grind boots appeared again in theFuture series. They differed in appearance from the other games; perhaps Ratchet purchased a newer version or modified the pair he bought in the first game.