1/4-20 UNC Thread  Straight Flute

The Cleveland 1003 bottoming hand tap is made of high-speed steel. This part has a 1/4-20 UNC thread and 2.5 in length. In threading applications, a clearance level for the thread is known as the tap limit. In this case, the tap limit is H3. To ensure compatibility with your tool, this part has a 0.255 in straight with square shank. Another important consideration is the Bright finish.