Question

post - test
what do cut - off tools use to cut through metal?
a. thin discs
b. weld grinding wheel
c. abrasive bits
d. drill bits

Explanation:

Cut - off tools typically use thin discs (cut - off wheels) made of abrasive materials to cut through metal by abrasion. Weld grinding wheels are for grinding welds, abrasive bits are for drilling or shaping by abrasion in other contexts, and drill bits are for making holes.

Answer:

A. Thin discs