SCREWDRIVERS & PLIERS

SCREWDRIVERS PART NAMES

TIP SHANK HANDLE

SCREWDRIVERS PURPOSE

• USED TO TURN (DRIVE) SCREWS AND SMALL FASTENERS

• SHOULD NOT BE USED TO CHISEL WITH

• SHOULD NOT BE USED TO PRY WITH

QUESTION #10 SAFETY TEST

• When I am using hand tools, I will observe at least these three safety rules to prevent injury to me or someone else.– Use the tool as it was intended to be used

RESULT OF USING SCREWDRIVER AS A PRY BAR. BENT SHANK.

SCREWDRIVER SAFETY

• USE A VICE TO HOLD SMALL PARTS

• KEEP HANDS AND FINGERS BEHIND TIP

• USE AS INTENDED

SCREWDRIVERS TYPES

• PHILLIPS

• FLAT (STANDARD)

• CLUTCH HEAD– NOT USED MUCH ANY MORE

PHILLIPS SCREWDRIVER

DIFFERENT LENGTHS

DIFFERENT TIP SIZES

WORKS WELL WITH WOOD AND\OR UPHOLSTERY

CHOOSE TIP SIZE THAT FITS THE SCREW BEST

# 2 BIT SIZE

DO THE JOB

DIFFERENT LENGTHS AND BIT SIZES

FLAT SCREWDRIVER

INCORRECT FIT

CORRECT FIT

SCREWDRIVER VARIATIONS

OFFSET SCREWDRIVERS

NO ROOM TOFIT SCREWDRIVERONTO SCREW

OTHER SCREWDRIVERSFLAT SCREWSTARTER

TIPS DRIVEN BY RATCHETS

OFF SET WITHREMOVABLE TIPS

REMOVABLE TIPS

PHILLIPS SCREWSTARTER

SCREWDRIVER MAINTENANCE

• KEEP CLEAN

• INSPECT TIPS FOR DAMAGE OR WEAR– FLAT TIPS CAN BE GROUND ON CHEAP

SCREWDRIVERS– GOOD QUALITY WILL REPLACE FOR FREE

• INSPECT HANDLES FOR DAMAGE

• INSPECT SHANKS FOR STRAIGHTNESS

SCREWDRIVER PRICES

2000 PRICE WAS $30

PLIERS

PLIERS PART NAMES

JAWS

PIVOT

HANDLES

JOB SHEET #1 STEP #5

BREATHER TUBE

PLIERS PURPOSE

• EXTENSIONS OF OUR FINGERS

• HOLD HOT THINGS

• GRIP THINGS WITH MORE FORCE THAN FINGERS

• KEEP FINGERS AWAY FROM DANGER

• EXTEND OUR FINGERS

• CUT OBJECTS

• BEND OBJECTS

IMPROPER USE OF PLIERS

ROUNDS OFF THECORNERS OF BOLTSOR NUTS.

PROPER WRENCH ORSOCKET WON’T FITPROPERLY WITHROUNDED CORNERS

IMPROPER USE CONTINUED

• ONLY USE HANDS TO GRIP HANDLES– DON’T USE CHEATERS ON HANDLES– DON’T SQUEEZE HANDLES IN VICE

PLIERS SAFETY

• KEEP FINGERS OUT OF JAWS

• KEEP FINGERS AWAY FROM PIVOT

• USE AS INTENDED

VARIATIONS OF PLIERS

JOB SHEET #1 STEP #31

RING EXPANDING PLIERS

JOB SHEET #1 STEP #34

PISTON RING

JAWS OF PLIERS

TOP OF PISTON

OVER EXPANDED = BROKEN

OUCH!

SNAP RING PLIERS

PLIERS MAINTENANCE

• LIGHT OIL ON PIVOT

• KEEP CLEAN

• INSPECT JAWS FOR DAMAGE

SCREWDRIVERS & PLIERS

QUESTIONS?

EXTERNAL SNAP RING

WHEN YOU SQUEEZE THEHANDLES, WHAT WILL THEJAWS DO? ? ?

LOOK AT THE PIVOT POINTTHAT’S RIGHT! THE JAWSSPREAD APART OPENINGTHE SNAP RING.

INTERNAL SNAP RING

LOOK AT THE PIVOT POINTAND PLIERS AGAIN.

WHEN YOU SQUEEZE THEHANDLES ON THESE, WHATWILL HAPPEN TO THE JAWS?

THE JAWSMOVE TOGETHER

BOTH INTERNAL & EXTERNAL SNAP RING PLIERS

EXTERNAL INTERNAL

HANDLES OPEN HANDLES CLOSED