screwdrivers & pliers screwdrivers part names tipshankhandle
TRANSCRIPT
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