The document discusses various operations that can be performed on a drilling machine, including drilling, reaming, boring, counter boring, counter sinking, tapping, and spot facing. It provides brief definitions and descriptions of each operation, such as drilling produces circular holes using a rotating drill bit, reaming smooths drilled holes using a reamer tool, and tapping cuts internal threads using a threaded tap tool. The document was created by an engineering student for a class project on drilling machine operations.

1. B.H. Gardi College of
Engineering and
Technology
Made By - Raj Kumar Moond
Sem. - 3rd
Dept. - Mechanical
Roll no. - 15ME527
Enroll. No. - 150040119527
Drilling Machine Operations

3. Drilling Machine Operations
• Drilling
• Reaming
• Boring
• Counter Boring
• Counter Sinking
• Tapping
• Spot Facing

4. Drilling
• Drilling is the operation of
producing circular hole in
the work piece by using a
rotating cutter called Drill.

5. Reaming
• It is a process of
smoothing the surface of
drilled holes with a tool
called Reamer.

6. Boring
• It is a process carried on
drilling machine to
increase the size of drilled
hole using the Boring
tool.

7. Counter Boring
• This process involves
increasing the size of
hole at only one end.

8. Counter Sinking
• This is an operation of
making the of a hole into
Conical Shape.

9. Tapping
• It is a process of
cutting internal
threads with a thread
tool called as Tap.
• Tap is fluted threaded
tool used for cutting
internal thread.

10. Spot Facing
• It is a finishing operation
to produce flat round
surface usually around a
drilled hole, for proper
seating of bolt head or
nut.
• It is done by using a
special Spot Facing Tool.

11. THANK YOU