What tools did the blackfeet Indians use?

Tools (as opposed to weapons) were mainly used by Blackfoot women for food preparation, dressing hides and so on.

The "berry masher" (Blackfoot: Itai'pixopi) was a stone-headed hammer used to pound dried meat, fat and berries to make pemmican, a way of preserving food for journeys and for the long winter. The "hide scraper" and "beamer" (Blackfoot: Apaksísttohkáksaakin) were tools like chisels made originally from buffalo leg-bones and later of metal fitted to a wooden handle.

The Blackfoot tribes obtained their tobacco in trade in the form of thick, hard lumps which had to be ground on a wooden board; these boards were carved and painted with traditional designs.

Blackfoot women used birch wood to make digging sticks (Ihtonatopa in Blackfoot)for finding edible roots such as wild carrots. These sticks had their business end hardened in the fire

Metal knives (Blackfoot: Sto-wan) got from traders made the preparation of hides and rawhide much more simple; containers of rawhide called parfleches were used to store and transport small items, clothing and so on.

Buffalo horn was turned into spoons, gunpowder flasks, cups and ladles, while rib bones made a tool for men to straighten their arrows. Several ribs tied together made a child's sled; wedge-shaped pieces of porous hipbone or shoulder blade made paint brushes.

The link below takes you to an image of a typical hide scraper fitted with a small metal blade; there is also an image of a Blackfoot tobacco board: