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PROTO Hex Key Sets


PROTO hex key sets are designed to tighten or loosen fastening screws in automotive, industrial machinery and scientific equipment. They have hexagonal tips to fit in the 6-sided indentation in the screw head or bolt.

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PROTO J4974A
PROTO J4988MB
PROTO J4985C
PROTO J4984D
PROTO J4973-TTE
PROTO J4969F
PROTO J4991G
PROTO J4983H
PROTO J4986I
PROTO J4987J
PROTO J4993K
PROTO J4996CGL
PROTO J4992M
PROTO J4968N
PROTO J4980O
PROTO J4981P
PROTO J4982Q
PROTO J4994R
StyleModelMeasurement TypeNumber Of PiecesLength FamilyContainer TypeShapeHandle MaterialHandle TypeTether CapablePrice
A
J4974		Metric7ShortNoneFoldingAlloy SteelPlainNo€14.84
B
J4988M		Metric15ShortMetal BoxLAlloy SteelPlainNo€110.95
C
J4985		Metric7ShortPlastic Holder-Alloy SteelPlainNo€15.32
D
J4984		Metric9ShortPlastic Holder-Alloy SteelPlainNo€26.67
E
J4973-TT		Metric6Short-FoldingAlloy SteelPlainYes€58.61
F
J4969		Metric6Long--PlasticPlastic CoatedNo€105.33
G
J4991		SAE8LongNoneFoldingAlloy SteelPlainNo€22.71
H
J4983		SAE13LongPlastic HolderLAlloy SteelPlainNo€34.18
I
J4986		SAE18ShortMetal BoxLAlloy SteelPlainNo€103.39
J
J4987		SAE14LongMetal BoxLAlloy SteelPlainNo€59.29
K
J4993		SAE9ShortNoneFoldingAlloy SteelPlainNo€17.41
L
J4996CG		SAE6ShortPlastic HolderFoldingPlasticPlainNo€30.38
M
J4992		SAE8ShortNoneLAlloy SteelPlainNo€10.60
N
J4968		SAE11Long--PlasticPlastic CoatedNo€219.06
O
J4980		SAE13ShortPlastic Holder-Alloy SteelPlainNo€26.39
P
J4981		SAE11ShortPlastic Holder-Alloy SteelPlainNo€13.14
Q
J4982		SAE7-Plastic Holder-Alloy SteelPlainNo€9.51
R
J4994		SAE5Short-FoldingAlloy SteelPlainNo€24.02

Working Mechanism

  • Place one of the ends inside a fastener with a hexagonal key and turn it.
  • Turn the key for rotating the fastener to tighten or loosen it.
  • For tightening, rotate clockwise. For removing or loosening, turn it counter-clockwise.

Features

  • PROTO hex key sets feature heat-treated alloy steel construction with rust-resistant black oxide finish for prolonged use.
  • They come with plain, L-shaped, fold-up & ergonomic T-handles for convenient fastening.
  • The folding hex key sets (such as J4978) comprise multiple keys attached to one handle.
  • Keys with tips having a hex ball end allow fasteners access to hard-to-reach areas from multiple angles.
  • Selected models are L-shaped and have two arms of unequal length.
  • They allow both Metric & SAE measurement and are available in packs of 5, 6, 7, 9, 11, 13, 14, 15 & 18 pieces.
  • These sets are supplied in a metal storage box or moulded plastic holder.

Frequently Asked Questions

What is the difference between T-shaped and L-shaped keys?

T-shaped hex key sets (unlike L-shaped keys) feature one long arm with a drive tip at the end, along with a handle for delivering more torque when rotating fasteners.

What is the difference between long end & short end handle keys?

Rotating a long end handle key delivers more torque on the fastener, as compared to using a short end handle key.

How do you maintain hex key sets?

  • Protect keys from rust formation.
  • Store in a dry and clean place.
  • Wipe and lubricate after each use.

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