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MEASURING AND MARKING TOOLS

MEASURING AND MARKING TOOLS. RULER. A METAL RULER is the most important measuring tool. It is usually 12” or 24” long. . SCRIBER. It is a very thin steel tool sharpened to a point. It is used to scratch lines and measurements on metal.

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MEASURING AND MARKING TOOLS

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  1. MEASURING AND MARKING TOOLS

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

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

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

  5. 2 TYPES OF PUNCHERS • 1. PRICK PUNCH- Is used in sheet metal work to locate the center of an arc or hole.

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

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

  8. INSIDE CALIPER • Is used to measure the diameter of holes.

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

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

  11. ACTIVITY

  12. QUIZ: Enumerate the ff. question. 1-2. What are the 2 types of punchers. 3-4. What is the difference between inside caliper and outside caliper. 5. What are the 2 angles that can be produced in Combination Square.

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

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