What are the main difficulties in deep drilling?

Pinpointed coolant supply through a tool’s body, directed precisely to the cutting zone, offers significant benefits. The main advantages are as follows:

• Enhanced cooling and lubrication effectiveness.
• Improved chip evacuation.
• Consequently, pinpointed coolant supply noticeably reduces tool wear and extends tool life. This allows for increased cutting parameters and higher productivity.

How to determine whether a milling tool is right-hand or left-hand?

To determine this, examine the end of the milling tool that does the cutting. A right-hand (RH) milling tool cuts when it rotates counterclockwise (CCW), while a left-hand (LH) milling tool cuts when it rotates clockwise (CW).

What is silicon brass and what is its machinability?

Silicon brass is a type of brass that contains silicon (typically up to 6%) to improve strength and resistance to corrosion. The machinability rating of silicon brass is 20–30% lower when compared to free-cutting (leaded) brass. Generally, the machinability of silicon brass is roughly comparable to that of lead-free brass.

Crankshaft drill

– A specialized drill used for producing oil holes in crankshafts, especially in the automotive industry.

Oil-hole drill

– Typically, this is a drill with internal channels for coolant supply, often called "oil holes." Such a drill is also known as a coolant-through drill, internal-coolant drill, or simply an oil drill. However, in some cases, the terms "oil-hole drill" and "oil drill" can also refer to a drill specifically designed for machining oil holes in various components.

Setting angle

– In milling, this term usually refers to the tool’s cutting edge angle, but it may occasionally also relate to the tool’s lead angle.