The angle to which a wood chisel's cutting edge should be ground is a. 90°. b. 45°. c. 25°. d. 60°.

For a good cut of the edge  ,The wood chisel ,who is cutting edge, the angle must be always  less than 90°.

→ When angle between Axe and the point of contact on the edge is less than 90 degrees it will take less time to cut the edge.

→ When angle is small, the pressure on Wood chisel's body will be more , which will make him tired and take longer time to cut the edge at the point from where he or she wants to cut the edge.

So, for a perfect cut angle should be between the limits:

45< Angle < 90.

From my point of Correct option should be (D) 60°.

$12. that is my answer.