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PROTO Adjustable-Hook Spanner Wrench - Adjustable-Hook Spanner Wrenches
PROTOAdjustable-Hook Spanner Wrenches

PROTO Adjustable-Hook Spanner Wrench

The PROTO Spanner Wrench is a 2-inch adjustable-hook spanner wrench (SKU JC491B, MPN JC491B). It features a round hook shape, a 1/8-inch pin diameter, a 1/8-inch pin length, a 3/8-inch hook thickness, and a 6…

SKU 3G-OTH-307539

Brand
PROTO
Item
Adjustable-Hook Spanner Wrench
Part Number
JC491B
Category
Adjustable-Hook Spanner Wrenches
Available to Order
Also known as:JC491BPROTO
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Technical Specifications

PROTO
Manufacturer Part Number
JC491B
Overall Lg
6 3/8 in
Pin Lg
1/8 in
Pin Dia
1/8 in
Hook Thick
3/8 in

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

Product Description

The PROTO Spanner Wrench is a 2-inch adjustable-hook spanner wrench (SKU JC491B, MPN JC491B). It features a round hook shape, a 1/8-inch pin diameter, a 1/8-inch pin length, a 3/8-inch hook thickness, and a 6 3/8-inch overall length.

Frequently Asked Questions

What is the PROTO Spanner Wrench used for?

The PROTO Spanner Wrench is used for turning round nuts, locknuts, and retaining rings with drilled or notched faces. It is commonly applied in industrial maintenance, automotive repair, and machinery assembly where precise torque on adjustable-hook fasteners is required.

What are the specifications of the PROTO Spanner Wrench JC491B?

The PROTO Spanner Wrench JC491B has a 2-inch capacity, a round hook shape, a 1/8-inch pin diameter, a 1/8-inch pin length, a 3/8-inch hook thickness, and a 6 3/8-inch overall length. It is a PROTO-brand adjustable-hook spanner wrench designed for industrial applications.

Where to buy the PROTO Spanner Wrench worldwide?

You can source the PROTO Spanner Wrench JC491B worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this PROTO adjustable-hook spanner wrench.

How to select the right PROTO Spanner Wrench?

To select the right PROTO Spanner Wrench, match the wrench capacity to the nut or ring diameter, and ensure the pin diameter and hook thickness fit the holes or slots. For the JC491B model, verify the 2-inch capacity and 1/8-inch pin dimensions suit your application. Consult PROTO's sizing guide for best results.

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 adjustable-hook spanner wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This adjustable-hook spanner wrench has a 9-3/4 in overall length, 1/2 in hook thickness, and 5/16 in hook depth. It is used for turning or holding nuts, collars, and other round fasteners with notches or holes in maintenance and assembly operations
PROTO
This adjustable-hook spanner wrench has a 9-3/4 in overall length, 1/2 in hook thickness, and 5/16 in hook depth. It is used for turning or holding nuts, collars, and other round fasteners with notches or holes in maintenance and assembly operations

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