A flint tool is a prehistoric tool made by shaping flint or other types of stone into a sharp-edged implement, often used for cutting or scraping. Flint tools were commonly used by early humans for various tasks such as hunting, cooking, or crafting.

A sickle is a tool use to cut grass or grain. Flint bladed means that it uses sharp chips of flint rock for the cutting edges.

These tiny flint tools are known as microliths.

Flint is a microcrystalline sedimentary rock composed primarily of quartz, exhibiting a conchoidal fracture which made it useful in tool making.

You can make flint and steel using 1 iron ingot and 1 piece of flint. Here is the crafting recipe for it:

F = Flint

I = Iron Ingot

N = Nothing

F N

N I