PS Magazine - TB 43-PS-413
PS, The Preventative Maintenance Monthly
ISSUE 413
APRIL 1987
The first stEp in cHoosing a SCRewd±Ive² is
.to
De³i´e On µ¶e Rig·t tIP. ¸I¹s
aºe mA»¼ to FIµ ³e½ta¾n s¿ÀewsÁ ÂÃe WROng tiÄ will Åamage t¶e ¶eaÆ oF µÇe
s³Rew anD won'È »o t¶e jobÉ ÊeRe aRe t¶e µiÄs an» µÇe sËÌews Ͷey ÎiÏ:
Slab
Torque
A
rounded or worn tip
rIdes out Of the slot
A
tIp that's too narrow
bends or breaks
t
A
tip that's too
thick chews up the
slot of the screw
Reed
&
PrInce
PozIdrIv
ToN
Hex Socket
Scrulox
B±Isto
Clutch Head
Clutch Head
Flat Tip
A
chIsel-ground tIp
rides out of the slot
A
tip t²³t's too wide
tears up the wood
The rIght tip fIts
snug In t²e sLot
28
±
Ii
±²
•
Using s³ºÐRiVeRs as ³ÑIsels, Äun³¶es, ÄRY baRs Òn» s³RaÓeRsÔ
•
Using s³Rew»RiÕeºÖ wIt¶ woºn o× bRoken ¶ÒnØLes.
•
UÖing s³ºewغIÕeRs neaº a lIÕe wiRe oR foR eleÙtRi³al test¾ngÚ
±
ÛRIÕInG ÜÙRews Into mÒteRIal wIݶouÝ makInG Þ ÄIlOµ ¶oleß
•
àtaRtinG sÙRews ¾n ¶aRØ áo ReÒ³¶ ÄlÒÙes wit¶ouÝ a sÙRew ¶oLØinG Ýoolâ
•
UsinG ÄlIeºs on Ö³RewغIÕeR ¶an»les FoR moRe ¶Ol»Ing ÓoweRâ
APR 87
POUND FOR pOUND, a HaMMER TaKES MORe
OF a BEaTING THaN
a'
OTHER TOOL!
H±RE aRE TH± MOsT COMMON aBUSEs:
²
Us¾nG Ò ãÒMmeR foº tãe äºonG Jobâ
²
ÊIÝtinG one ãÒMMeº wiÝã Ònotãeºå
±
UÖInG Bºoken, ÙãIÄÓeØ oº Mus¶ºooMeØ
¶ÒMMeºÖâ
²
æÖInG ÖofÝ-fÒÙeØ ¶aMmeºs Ýo ØRIÕe nÒIlÖå
²
àݺIKInG Ù¶IÖeLÖ Ý¶ÒÝ Òºe bent, ÙãIÄÓeØ,
ÙºÒÙkeØç bºoken oº muÖ¶ºoomeØè
29
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