A Mechanic Needs an Axle Shaft Key 1/4 Inch Square

Multiple Choice

A mechanic needs an axle shaft key 1/4 inch square. The only available piece of key stock measures 1/4 inch x 5/8 inch. How many inches of stock have to be removed to bring it to proper size?

A) 1/4
B) 3/8
C) 1/2
D) 5/8