Drill Press (Metal)
I.
Competencies
Given a properly adjusted drill press, accessories, instruction and demonstration of use, each
student will be able to:
A. Identify the major parts of the drill press.
A. Pass a written test on safety and operating procedures of the drill press with 100 percent
accuracy.
B. Demonstrate ability to use the drill press, following suggested safety rules and correct
operation procedures.
II.
Instructional Materials and Procedures
A. Identification of Basic Drill Press Parts
1.
2.
3.
4.
5.
6.
7.
Variable speed control
Switch
Depth stop
Quill lock
Chuck
Table
Safety guard
8.
9.
10.
11.
12.
13.
Motor
Head support collar
Column
Pilot feed lever
Table locking clamp
Base
B. Drill Press Safety
1. Do not wear loose clothing or jewelry while operating a drill press. Confine long hair with
a cap or hair net.
2. Wear industrial quality eye protection while drilling.
3. Keep all guards in place.
4. Keep work space around the drill press clean. Make certain that cutting oil and cooling
lubricant are not spilled on the floor.
5. Turn off power before making adjustments.
6. Drill only with sharp drill bits with shanks that are matched to the type of chuck being
used.
7. Secure bit by tightening in each hole of the drill chuck. Remove the chuck key before the
drill press is turned on.
8. Clear the drill press table of all tools, metal, rags, etc. before drilling.
9. Secure all work in a drill press vise or with a clamp before drilling.
10. Never hold material by hand while drilling.
11. Never attempt to stop a revolving piece of work in the drill press by hand.
12. Never allow any part of your body to touch the drill bit or any revolving part of the drill
press while it is in motion.
C. Drill Press Basic Operating Procedures
1. Adjust drill speed and feed to the type and size of hole being drilled. Check drill
specifications for recommended drill speeds and feed.
2. Position long stock so it is to the left of the drill press operator while being drilled.
3. Select proper sized bit by using drill gauge. Make certain the drill shank and chuck are
matched, i.e. use a straight shank drill in a Jacobs chuck and a tapered shank drill in a
morse tapered chuck.
4. Tighten the drill bit securely in chuck.
5. Mark all metal be drilled with a center punch.
6. Support the end of long stock with a stand.
7. Clamp the metal to be drilled in vise. Place a block of wood under the metal being drilled
to prevent the bit from cutting into the vise after coming through the work.
8. Align the drill bit with the center punch mark.
9. Make certain the chuck key had been removed from the chuck before starting the drill
press.
10. Make sure that guard(s) is/are in place and the table locking clamp is tightened securely.
11. Use the proper cutting lubricant for the material being drilled.
12. Set the drill speed to match the material being drilled and hole size. Note that variable
speed drill presses require the machine to be running to adjust the operating speed.
13. Turn on the power and apply appropriate cutting lubricant. The cutting lubricant should be
applied to the upper portion of the bit.
14. Apply pressure to pilot feed lever, feed drill bit into metal fast enough to keep drill bit
cutting at all times. Continue to apply lubricant as needed.
15. Just as the bit begins to cut through the metal, reduce the feed pressure so the bit will not
seize the metal. Seizing causes the material to be grabbed by the bit, which will cause the
material to revolve around the bit or will break the bit. Stop the drill press before
removing any revolving material.
16. After the hole is drilled release the pilot feed lever slowly and allow the chuck to return to
the starting position.
17. Turn off power.
18. When work is removed from the vise be careful, the underside of the hole may have sharp
burrs which will need to be filed or ground smooth.
19. Remove drill bit, clean, and return it to proper storage place.
20. When drilling long stock; put work on the drill press table, long end to the left of the drill
press operator. Lower the drill bit to the work and align the center punch mark with the
drill bit. Then tighten the quill lock and clamp the material to the table using a clamp. Use
a support to hold up the unclamped end of the stock. Release the quill lock and drill the
hole.
21. When drilling round stock; use a V-shaped drill block to support and hold the material.
After the material is center punched and aligned with the drill bit, clamp the stock to the
drill press table using clamp, then drill the hole.
III.
Written Test
Drill Press Safety and Operation Test
Name______________________ Date_________________ Class__________________
Multiple Choice – Place the letter of the most correct answer on the answer sheet.
1. When operating the drill press, what should be done with long hair?
a.
b.
c.
d.
Hold it away from the drill bit with one hand
Put it under a cap or hair net and keep your head away from moving parts
Get a haircut
Keep your head back away from moving parts
2. What type of drill press chuck should be used with a straight shank twist drill?
a.
b.
c.
d.
Universal 3-jaw chuck
Jacobs chuck
Morse tapered chuck
Any of these are acceptable
3. Which item(s) of protective equipment is/are absolutely necessary when operating the drill press?
a.
b.
c.
d.
Leather gloves
Leather apron
Steel toed shoes
Safety glasses
4. Which of the following conditions would be unsafe when operating a drill press?
a.
b.
c.
d.
Floor is slippery from spilled cutting oil
Drill area is cluttered with tools and scrap metal
The belt guard is loose
All of above
5. If the metal being drilled begins to revolve, you should _________.
a.
b.
c.
d.
turn off the drill press and free the metal
tap the metal lightly with a hammer to free it from the bit
stop it with your hands
move the drill press table to foul the rotating piece of metal
6. To select the proper twist drill, one should check _________.
a.
b.
c.
d.
size, sharpness and type of shank
drill speed
lubrication needed
length of the drill cutting lips
7. Before turning on the drill press the operator should _________.
a.
b.
c.
d.
tighten the drill press table locking clamp
clamp work in a vise
remove the chuck key
all of the above
8. Which is not a safe way to secure metal while it is being drilled?
a.
b.
c.
d.
Hold it firmly by hand, but securely on the drill press table
In a drill press vise
Clamp
Between supports mounted on the drill press table
9. Which should be done while drilling metal with the drill press?
a.
b.
c.
d.
Change speed of the drill press
Maintain enough feed pressure to keep the bit cutting at all times
Keep the drill press quill locked
Lubricate the chuck
10. When a bit seizes it may __________.
a.
b.
c.
d.
break the bit
cause the vise to turn
cause the bit to slip in the chuck
all of the above
11. After the drilling is finished, which of the following should be completed first __________.
a.
b.
c.
d.
turn off the drill press
remove the drill bit from the chuck
remove the work from the drill press vise
none of the above should be done first
12. Metal chips should be removed from the drill press _________.
a.
b.
c.
d.
by wiping with the hand
by blowing with compressed air
by using a brush
any of the above are satisfactory
13. When drilling long material what precaution(s) should be taken?
a.
b.
c.
d.
Support the clamped end with a stand
Put the long end of the stock to the right of the operator
Support the unclamped end with a stand
None of the above
14. After a drilling operation is completed what potential hazard should the operator be alert
to__________.
a.
b.
c.
d.
the twist drill will be dull
sharp edges and burrs around the hole
hot cutting oil
stresses built up in the metal being drilled
15. To prevent seizing one should __________.
a.
b.
c.
d.
keep the bit well lubricated
reduce feed pressure when the hole is about finished
reduce speed of the drill bit
put a block of wood under the metal being drilled
IV.
Performance Test for the Drill Press
Student___________________________
Student performs the following while using the drill press:
1.
2.
3.
4.
5.
The guard is kept in place.
Safety glasses are worn at all times.
Work area is cleared of tools, stock, rags, etc.
Good footing is maintained by the student.
Loose clothing, long hair, and jewelry are secured or
removed before operating the drill press.
6. Stock is secured in a vise or clamped down
while being drilled.
7. A proper size bit, with shank matched to chuck, is used.
8. The drill press table is locked securely.
9. The drill bit is tight in the chuck.
10. The metal is marked with a center punch.
11. The long end of the stock is to the left of the operator
and is supported.
12. The drill press speed is matched to the work.
13. The lubricant is appropriate for the material being drilled.
14. Proper feed pressure is maintained.
15. The machine is turned off immediately after the drilling
operation is completed.
16. The chuck key is removed from the chuck before
drilling is started.
17. Correct procedures that are safe and acceptable.
Yes
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No
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N/A
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Comments____________________________________________________________________________
_____________________________________________________________________________________
______________________________________________
I hereby certify that the student has satisfactorily demonstrated ability to operate the drill press by passing
the above performance test.
_________________________ _________
Signed (Student)
Date
_____________________ _______
Signed (Teacher)
Date
Drill Press Parts Identification Test
Name_____________________________
Match the number of each drill press part with the correct part name.
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A.
B.
C.
D.
E.
F.
Safety guard
Depth stop
Table
Base
Pilot feed lever
Variable speed control
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H. Switch
I. Column
J. Quill lock
K. Head support collar
L. Chuck
M. Table locking clamp