What is rotational speed and rotation...

What is rotational speed? Rotational speed means how many revolutions the tool makes in one minute. In the machining program that moves the machine too... 詳細表示

What is the feed rate of a drill?

What is the feed rate of a drill? The feed rate is the number of millimeters that the tool moves in one minute. The unit of feed velocity (Vf) of the drill... 詳細表示

What does cutting speed mean?

What does cutting speed mean? Cutting speed is the speed at which the outermost part of the tool moves in one minute. Symbols are denoted by Vc. The unit i... 詳細表示

Do you need to Pilot hole drill for l...

Do you need to Pilot hole for large drilling? If you have enough mechanical horsepower, you don't need Pilot hole . It is recommended to drill holes from a... 詳細表示

How deep can a hole be drilled? How m...

How deep can a hole be drilled? How much flute length do I need? Since the drill digs while releasing chips, it is necessary to constantly drain chips f... 詳細表示

How many revolutions does a long dril...

What is the rotation speed when inserting a long drill into the guide hole? As a guideline, reduce the rotation speed to 500 rpm or less when inserting a lo... 詳細表示

What does the drill feed (mm/rev) mean?

What does the drill feed (mm/rev) mean? The unit of feed (mm/rev) of the drill indicates how many millimeters the drill advances in one revolution. The ... 詳細表示

The drilled hole has a polygonal shap...

The drilled hole has a polygonal shape. Why? This may be due to runout during drilling. (1) Runout when installing the drill. Solution: Keep the installat... 詳細表示

Even though the hole position is cent...

Even though the hole position is centered, the hole position becomes unstable. What can be done to improve the accuracy of the hole position? When the drill... 詳細表示

Do you need drilling centering?

Do you need drilling centering? Centering is used to improve hole position accuracy and to reduce unstable behavior during hole entrance machining. Unless ... 詳細表示