Sign In

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.

Filter
StyleModelLength FamilyNumber Of PiecesMeasurement TypeShapeHandle MaterialHandle TypeTether CapableArm TypePrice
A
J4968
Long11SAE-VinylErgonomic, T HandleStandard ToolLong£151.35
B
J4983
Long13SAELAlloy SteelPlainStandard ToolLong£25.16
C
J4991
Long8-FoldingAlloy SteelPlainNoLong£16.67
D
J4973-TT
Long6MetricFoldingSteelPlainYesLong£42.91
E
J4994
Long5SAEFoldingSteelFold UpStandard ToolShort£17.35
F
J4969
Long6Metric-VinylErgonomic, T HandleStandard ToolLong£74.49
G
J4973CG
Long6MetricFoldingPlasticFold UpStandard ToolShort£20.11
H
J4987
Long14SAELAlloy SteelPlainStandard ToolLong£42.01
I
J4980
Long, Short13SAE-Alloy SteelL HandleStandard ToolShort£20.29
J
J4982
Long, Short7SAE-SteelL HandleStandard ToolShort£6.53
K
J4988M
Long, Short15MetricLAlloy SteelPlainStandard ToolShort£87.72
L
J4984
Short9Metric-Alloy SteelL HandleStandard ToolShort£20.97
M
J4986
Short18SAELAlloy SteelPlainStandard ToolShort£80.46
N
J4996CG
Short6SAEFoldingPlasticFold UpStandard ToolShort£21.25
O
J4974
Short7MetricFoldingAlloy SteelPlainNoShort£11.45
P
J4993
Short9-FoldingAlloy SteelPlainNoShort£11.88
Q
J4985
Short7Metric-Alloy SteelL HandleStandard ToolShort£10.74
R
J4981
Short11SAE-Alloy SteelL HandleStandard ToolShort£9.44
S
J4992
Short8-LAlloy SteelPlainNoShort£8.22
T
J4978
Short9SAEFoldingSteelPlainStandard ToolShort£11.04

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.

We are here to help!

Looking for a part not listed here?