The Legend of Zelda: a Link to the Past Walkthrough Part 16
Link gets the Titan's Mitt.

He fight the Blind the theif. Try to protect yourself with your sword, and don't go to the center. Attack him with your Spin Attack.

He pass through the fourth dungeon and finds the blacksmith's lost brother. Take him to his older brother and he will temper your sword!

ITEMS FOUND:
Titan's Mitt.
Heart Container
4th Maiden Crystal