Tapping and Threading

Which tap does the threads gradually cut into the material from the beginning of the tap?

• Tapered tap
• Plug tap
• Bottoming tap
• Starter tap

What does the 1.5 refer to in the tap size M10 X 1.5?

• Major diameter

• Minor diameter

• Pitch

• Distance between each thread

what does 12 refer to in the thread size M12 X 1.75?

• Major diameter

• Minor diameter

• Threads per inch

• Distance between each thread

When drilling a hole that has to be tapped, the drill size should be ________

• Larger than the tap size
• The same as the tap size
• Exactly .010 smaller than the tap size
• Smaller than the tap size

What tool is used to hold the tap when tapping a hole by hand?

• Tap key
• Tap holder
• Tap wrench
• Tap chuck

What should you use to determine the drill size for a certain tap?

• Drill chart

• Drill guide

• Tap guide

• Tap gauge

When tapping a hole you must turn the tap backwards 1/2 - 2 turns to break the chips

• True
• False

When tapping a hole by hand you should use a level to ensure the tap is cutting straight?

• True
• False

There is no need to use cutting oil when tapping a hole?

• True
• False

Which tap does the threads start at the beginning of the tap?

• Tapered tap
• Plug tap
• Bottoming tap
• Starting tap