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3G Electric
PROTO J5540HL 3/4" Drive 1-1/4" 6-Point Deep Satin Socket - 3/4" Drive Hand Sockets
PROTO3/4" Drive Hand Sockets

PROTO J5540HL 3/4" Drive 1-1/4" 6-Point Deep Satin Socket

The PROTO Socket: SAE is a 3/4" Drive Hand Socket, model J5540HL, featuring a 1 1/4" socket size with a 6-point deep design. It has a satin finish and is not tether capable, as specified by the manufacturer PROTO.

SKU 3G-OTH-315128

Brand
PROTO
Item
J5540HL 3/4" Drive 1-1/4" 6-Point Deep Satin Socket
Part Number
J5540HL
Category
3/4" Drive Hand Sockets
Available to Order
Also known as:J5540HLPROTO
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Technical Specifications

PROTO
Manufacturer Part Number
J5540HL
Type
6-Point, Deep, Satin, Not Tether Capable
Socket Size
1 1/4 in
Drive Size
3/4 in

Technical Documents

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

Product Description

The PROTO Socket: SAE is a 3/4" Drive Hand Socket, model J5540HL, featuring a 1 1/4" socket size with a 6-point deep design. It has a satin finish and is not tether capable, as specified by the manufacturer PROTO.

Frequently Asked Questions

What is the PROTO J5540HL socket used for?

The PROTO J5540HL is a 3/4 in drive, 1 1/4 in, 6-point deep socket designed for heavy-duty fastening in industrial maintenance, automotive repair, and assembly applications. Its satin finish resists corrosion, and the deep profile allows access to recessed bolts and nuts.

What are the specifications of the PROTO J5540HL socket?

The PROTO J5540HL is a 3/4 in drive hand socket with a 1 1/4 in socket size, 6-point deep design, and satin finish. It is not tether capable. The manufacturer part number is J5540HL, and it is made by PROTO.

Where to buy the PROTO J5540HL socket worldwide?

3G Electric supplies the PROTO J5540HL socket worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this PROTO socket for your operations.

How to select the correct PROTO socket for a 3/4 in drive system?

Ensure the socket size matches your fastener (e.g., 1 1/4 in for the J5540HL) and that the drive size (3/4 in) fits your ratchet or breaker bar. Choose 6-point for maximum torque on hex fasteners. The deep design suits recessed bolts, while the satin finish offers corrosion resistance.

Used in

Common applications for PROTO
Industrial maintenance — PROTO J6014CXCERT micrometer torque wrench for tightening fasteners to 50–250 ft-lb with tether capability.
Assembly operations — PROTO J6345A electronic torque wrench for 5–50 ft-lb control with audible and visual indicators.
Plumbing and mechanical — PROTO J812HD straight pipe wrench with 2 in jaw capacity for gripping and turning pipes.
Precision fastening — PROTO J61929 multi-bit screw and nut driver kit with 26 alloy steel bits for assembly and maintenance.
Tool organization — PROTO JUC3743-3SG heavy-duty utility cart with drawers, power strip, and padlock for shop floor use.
Metric fastener service — PROTO JSCVM-20SB 20-piece ratcheting combination wrench set covering 6 mm to 32 mm.
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PROTO Products

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

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