1. MEASURING AND MARKING TOOLS

3. RULER
A METAL RULER is the most important measuring tool. It is usually 12” or 24” long.

5. SCRIBER
It is a very thin steel tool sharpened to a point. It is used to scratch lines and measurements on metal.

6. A SCRIBER is considered the “metalworker’s pencil”.

8. 2 TYPES OF PUNCHERS
1. PRICK PUNCH- Is used in sheet metal work to locate the center of an arc or hole.

10. 2. CENTEPUNCH- Is used to mark holes to be drilled.

12. OUTSIDE CALIPER
Is used to measure the outside dimensions of either flat or round stock.

14. INSIDE CALIPER
Is used to measure the diameter of holes.

16. DIVIDER
It is used for inscribing arcs and circles and for transferring measurements directly from the rule.

18. COMBINATION SQUARE
It has a blade and a head that can slide along this blade to be locked in any position.

19. ACTIVITY

20. QUIZ: Enumerate the ff. question.
1-2. What are the 2 types of punchers.
What is the difference between inside caliper and outside caliper.
5. What are the 2 angles that can be produced in Combination Square.

21. What do you mean by cutting tools?
ASSIGNMENT:
What do you mean by cutting tools?
What ate the tools that will used in cutting metals