MEASURING AND MARKING TOOLS

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

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

A A SCRIBER SCRIBER is is considered the considered the “metalworker’s “metalworker’s

pencil”.pencil”.

2 TYPES OF 2 TYPES OF PUNCHERSPUNCHERS

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

2. 2. CENTEPUNCH-CENTEPUNCH- Is used to mark Is used to mark

holes to be holes to be drilled.drilled.

OUTSIDE CALIPEROUTSIDE CALIPERIs used to measure Is used to measure the outside the outside dimensions of either dimensions of either flat or round stock.flat or round stock.

INSIDE CALIPERINSIDE CALIPERIs used to Is used to measure the measure the diameter of holes.diameter of holes.

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

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

ACTIVITYACTIVITY

QUIZ: Enumerate the ff. question.QUIZ: Enumerate the ff. question.1-2. What are the 2 types 1-2. What are the 2 types of punchers.of punchers.

3-4. What is the difference 3-4. What is the difference between inside caliper and between inside caliper and outside caliper.outside caliper.

5. What are the 2 angles 5. What are the 2 angles that can be produced in that can be produced in Combination Square.Combination Square.

ASSIGNMENT:ASSIGNMENT:

What do you mean What do you mean by cutting tools?by cutting tools?

What ate the tools What ate the tools that will used in that will used in cutting metalscutting metals