Use power point and watch video to complete worksheets.

Mr. Jarrett's Lecture Notes

I. There are two types of portable drills, electric & battery powered.

a. The size of the drill is determined by the maximum chuck capacity. Ex. If the largest drill bit that will fit in a chuck is ½”, the drill is a 1/2” drill.

b. Electric Drills are stronger and therefore more dangerous.

II. Safety Rules

a. Disconnect the power plug before installing or removing drill bits

b. Be sure that the drill is in the off position when connecting to a power supply

c. When changing bits be sure that the bit is securely clamped in the chuck

d. Be sure that they key has been removed before using the drill

e. Do not force the drill, use steady, even pressure

f. Do not lay the drill down until it has coasted to a complete stop

g. Always clamp small pieces, do not try to hold them with your hand

h. Stock must be held so that it will not move during the operation.

i. During operation, always keep the drill aligned with the direction of the hole.

j. Never try to drill through cloth.

III. Demonstrate the process of changing bits for both types of drills

IV. Allow class to practice changing bits while in the classroom.

Worksheet

Student Name: __________________________________

Date___________________________________________

Objective: This lesson is designed to help you understand the safety principles involved with using a Portable Drill.

Directions: Please answer the questions on this sheet of paper. Doing this will help you identify the most important parts of the lecture and class discussion concerning the installation of fiber cement siding. The worksheet will be turned in, graded, and returned to you to help you study for your test. Point deductions will be made for spelling and grammar errors.

1. What determines the nominal size of the drill?

2. List the two types of drills.

3. What should you do before changing drill bits?

4. What position should the drill switch be in when connecting to a power supply?

5. When changing bits what should you check for?

6. Is it ok to use a drill with the chuck key in the chuck?

7. Is it ok to force the drill?

8. What should you check for before laying the drill down?

9. What should you do with small pieces when you have to drill them?

10. How should stock be held be held before drilling?

11. When drilling how should the drill be held?

12. Is it ok to drill through cloth?

Saber Saw Safety

I. There are two types of Saber Saws, Sawzalls, & Jigsaws

II. Sawzall – A type of all-purpose saw that operates with a back and forth motion. Since it is able to cut wood, plastic, metal and many other materials, this saw is commonly used in demolition or remodeling work.

a. types of blades – The more teeth per inch(TPI) that a blade has, the smoother the cut will be

i. Wood Cutting – Used for cutting wood usually has 6-8 TPI.

ii. Metal Cutting – Used for cutting metal usually has 14-18 TPI.

iii. Bi-Metal Cutting – Used for cutting wood or metal, especially wood embedded with nails. Usually has 9-13 TPI

III. Jigsaws This saw is similar to a band saw, the difference is that it is portable. Its portability makes it a great tool to have on the jobsite for cutting irregular shapes or finishing cuts made with a circular saw. A Jigsaw can cut plywood and other, larger framing members.

IV. Safety Rules – Safety Rules for all saber saws are the same.

a. Select the correct blade for the work and properly secure it in the chuck

b. Be certain that the material to be sawed is properly clamped

c. Keep the cutting pressure constant, do not force the cut

d. Allow the saw to come to a complete stop before setting the saw down

e. Hold the base securely on the work when cutting

V. Demonstrate the process of changing blades for both saws

VI. Allow class to enter the shop to practice changing blades

a. Unplug the Saw

b. Press the blade locking button

c. Loosen the Bolt

d. Remove the blade

e. Install the new with teeth pointing forward

f. Press the blade locking button

g. Tighten the bolt

Saber Saw Worksheet

Student Name: __________________________________

Date___________________________________________

Objective: This lesson is designed to help you understand the safety principles involved with using a Saber Saw.

Directions: Please answer the questions on this sheet of paper. Doing this will help you identify the most important parts of the lecture and class discussion concerning the installation of fiber cement siding. The worksheet will be turned in, graded, and returned to you to help you study for your test. Point deductions will be made for spelling and grammar errors.

1. What type of work is a sawzall normally used for?

2. How many teeth per inch does a metal cutting blade have?

3. How many teeth per inch does a Wood cutting blade have?

4. How many teeth per inch does a Bi-metal blade have?

5. What is a Bi-metal blade used for, primarily?

6. Select the _______________________ for the work and properly secure it in the chuck

7. Be certain that the material to be sawed is _____________________

8. Keep the cutting pressure constant, do not _______________________________

9. Allow the saw to come to a ____________________________ before setting the saw down

10. Hold the base __________________on the work when cutting

Band Saw Safety

I. Band Saw Safety Rules

a. Be sure the wheel guards are closed before operating the saw

b. Adjust the upper guide so that it is ¼” above the stock

c. Hold the stock flat on the table

d. Cut round stock using a “V” fixture

e. Allow the saw to reach full speed before beginning a cut

f. Keep your fingers at least 2” from the side of the blade

g. Feed the stock into the blade firmly and at a rate that will not overload the saw

h. Keep the blade from twisting by not cutting too small of a radius

i. If you need to back out of the cut stop the saw before doing so.

j. Clear scraps from the cutting area with a stick, not your fingers

k. Allow the saw to stop completely before making any adjustments

Band Saw Worksheet

Student Name: __________________________________

Date___________________________________________

Objective: This lesson is designed to help you understand the safety principles involved with using a band saw.

Directions: Please answer the questions on this sheet of paper. Doing this will help you identify the most important parts of the lecture and class discussion concerning the installation of fiber cement siding. The worksheet will be turned in, graded, and returned to you to help you study for your test. Point deductions will be made for spelling and grammar errors.

1. What should you check for before operating a band saw?

2. How far above the stock should the upper guide be?

3. How should the stock be held on the table?

4. What should you use to cut round stock on the band saw?

5. Is it ok to begin cutting before the saw has reached full speed?

6. How far from the blade should you allow your fingers to get?

7. How should you feed the stock into the blade?

8. How do you keep from twisting the blade?

9. If you ever need to back up while cutting what should you do first?

10. What should you use to clean scrap from the cutting area?

11. What should you do before making any adjustments to the saw?