We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
PROTO Impact Socket: 5.5 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable - 1/4" Drive Metric Flex Impact Sockets
PROTO1/4" Drive Metric Flex Impact Sockets

PROTO Impact Socket: 5.5 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable

The PROTO J66555MP is a 1/4" Drive Metric Flex Impact Socket with a 5.5 mm socket size. It features a 12-point standard design with a Black Oxide finish and is Not Tether Capable. This industrial-grade impact socket…

SKU 3G-OTH-314902

Brand
PROTO
Item
Impact Socket: 5.5 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable
Category
1/4" Drive Metric Flex Impact Sockets
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

PROTO
Manufacturer Part Number
J66555MP
Type
12-Point, Std, Black Oxide, Not Tether Capable, Metric
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO J66555MP is a 1/4" Drive Metric Flex Impact Socket with a 5.5 mm socket size. It features a 12-point standard design with a Black Oxide finish and is Not Tether Capable. This industrial-grade impact socket is manufactured by PROTO.

Used in

Common applications for PROTO
Automotive assembly — PROTO J72102 impact socket set for fastening lug nuts on production lines
Heavy equipment maintenance — PROTO J3772T flare nut wrench for hydraulic line fittings on excavators
General industrial repair — PROTO J795SA adjustable wrench set for tightening bolts on conveyor systems
Aerospace manufacturing — PROTO J5240A slotted bit socket for adjusting fasteners in confined spaces
Oil and gas pipeline work — PROTO J5438 12-point socket for valve assembly in refineries
Construction site toolkits — PROTO J8179-T500 double box wrench for structural steel bolting

PROTO Products

3G Electric supplies PROTO 1/4" drive metric flex impact sockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
PROTO Flex Impact Socket: 15 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J77515MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 15 mm.
PROTO
PROTO Flex Impact Socket: 15 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J77515MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 15 mm.
PROTO Flex Impact Socket: 16 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J77516MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 16 mm.
PROTO
PROTO Flex Impact Socket: 16 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J77516MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 16 mm.
PROTO Flex Impact Socket: 12 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J77512MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 12 mm.
PROTO
PROTO Flex Impact Socket: 12 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J77512MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 12 mm.
PROTO Flex Impact Socket: 14 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J77514MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 14 mm.
PROTO
PROTO Flex Impact Socket: 14 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J77514MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 14 mm.
PROTO Flex Impact Socket: 19 mm Socket Size, 6-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J77419MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 19 mm.
PROTO
PROTO Flex Impact Socket: 19 mm Socket Size, 6-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J77419MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 19 mm.

More from PROTO

View all PROTO parts →
PROTO Impact Socket: 8 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66508MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 8 mm.
PROTO
PROTO Impact Socket: 8 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66508MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 8 mm.
PROTO Impact Socket: 13 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66513MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 13 mm.
PROTO
PROTO Impact Socket: 13 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66513MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 13 mm.
PROTO Impact Socket: 6 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66506MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 6 mm.
PROTO
PROTO Impact Socket: 6 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66506MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 6 mm.
PROTO Impact Socket: 7 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66507MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 7 mm.
PROTO
PROTO Impact Socket: 7 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66507MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 7 mm.
PROTO Impact Socket: 12 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66512MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 12 mm.
PROTO
PROTO Impact Socket: 12 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66512MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 12 mm.
PROTO Impact Socket: 9 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66509MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 9 mm.
PROTO
PROTO Impact Socket: 9 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66509MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 9 mm.
PROTO Impact Socket: 10 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66510MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 10 mm.
PROTO
PROTO Impact Socket: 10 mm Socket Size, 12-Point, Std, Black Oxide, Not Tether Capable, Metric (MPN J66510MP). Key specifications — attr1204097: Black Oxide; attr1204098: Not Tether Capable; attr1204109: PROTO; attr1204102: 10 mm.