CUSTOMER QUESTION AND ANSWER

QUESTION: How to operate Hand Drill Machine?

ANSWER: STEP 1 SELECT THE DRILL BIT

when selecting a drill bit, it is very important to understand the size and depth of the hole you are drilling. When doing work with screws, pilot holes are important to prevent the wood from splitting. The diameter of the drill bit for the pilot hole must be the same as the diameter of your screw without the threads.

If you want to tap the hole that you are drilling, threading it so that you can screw a bolt in, look up the proper pilot hole sizes for the bolt you plan on threading.

Twist drill bits are the most often used for cutting smaller, more standard holes into the material, including wood and metal. When you want to drill a large hole with a twist drill bit, make sure to start with a smaller drill bit and widen the hole in stages; starting with a large bit can create a sloppy hole, make the bit more easily walk, and it might take very long to get through the material. consider this once you start using drill bits greater than or equal to a quarter inch.

STEP 2 PUT THE CHOSEN BIT INTO THE DRILL

Loosen the chuck by twisting it counterclockwise to widen the diameter of the jaws that clamp onto the drill bit.

Insert the shank of the drill bit into the jaws, and re-tighten the chuck until the drill bit is secured. Make sure the bit is centered and that the jaws clamp onto the flat sides of the shank. Also, make sure that you don't secure the jaws around the flutes of the bit; that will increase the risk of breaking the bit you are using, especially for smaller bits.

STEP 3 CHECK ALL OTHER SETTING

Make sure the drill has a charged battery in it. Using a battery that isn't charged enough can lead to slower, ineffective drilling. ( for cordless drill)

Check the speed settings on the drill -- the big switch on the top. Setting 1 is low speed and high torque, which is ideal for uses such as driving screws into the material. Setting 2 is high speed and low torque, which is good for drilling holes. You will likely be using the faster setting for most tasks, and the slower setting if you are drilling large/deep holes in wood with a twist bit.

Also you must pay attention to the dial around the chuck of the drill; the numbers indicate torque settings, and are useful when driving screws. If the number is too low, the drill will stop spinning and make a clicking noise under a lower amount of pressure. If the torque setting is too high, the screw bit might slip against the top of the screw and you risk rounding off the screw head. When drilling, make sure the dial is always turned to the drill bit symbol.

STEP 4 DRILL THE HOLE

Make sure the tip of the drill bit is touching the material before you start drilling, and that the drill bit is held at a reasonable angle. In most cases, when going straight through the material, this means that the drill bit will be perpendicular to the material.

Pull the trigger and start drilling slowly. Once the bit cuts slightly into the material, you can speed up and apply constant pressure until you have cut all the way into the material.

Once you are done, make sure the drill is spinning in the same direction and pull the bit out. This helps clean the hole that you just drilled.

QUESTION: WHEN USING A DRILL PRESS THE WORK SHOULD BE HELD WITH?

ANSWER: Drilling machines, or drill presses, are primarily used to drill or enlarge a cylindrical hole in a workpiece or part. The chief operation performed on the drill press is drilling, but other possible operations include: reaming, countersinking, counterboring, and tapping.

THE SAFETY

1. Be familiar with the location of the start and stop switches.

2. The drill press table should be cleared of miscellaneous tools and materials.

3. Ensure that all drill bits are sharpened and chucks are in working condition. Any dull drill bits, battered tangs or sockets should not be used.

4. Never attempt to remove scraps from the table by hand. Use brushes or other proper tools.

5. Never attempt to perform maintenance on the machine without the power cord unplugged.

6. Never insert a chuck key into the chuck until the machine has been turned off and stopped completely.

7. Belts and pulleys should be guarded at all times. If any are frayed, immediately report to the instructor for replacement.

8. All workpieces should be secured by a vise or clamp before starting the machining.

9. If the workpiece moves while in the vise or clamp

10. Use the proper speed settings and drill type for the material to be machined. 11. When mounting a drill bit, it should be to the full depth and centered in the chuck. 12. Eliminate the possibility of the drill bit hitting the table by using a clearance block and by adjusting the feed stroke. 13. Always feed the bit slowly into the workpiece. If the hole to be drilled is deep, draw the bit back often to remove shavings. 14. Before leaving the drill press for any amount of time, the power should be turned off and machine should be at a complete stop. 15. In any unsafe condition or movement is observed on the drill press, report it to the instructor immediately. 16. Leave the drill press cleaned and tidy at all times.