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

3G Electric
Describe the job or paste specifications. Press Enter or Search.
RFQ CartGet a QuoteSign inSign up
PROTO J99720 Master Tool Set, 453 Pieces, SAE, 1/4 in/3/8 in/1/2 in/3/4 in Drive - Tool Only Sets
PROTOTool Only Sets

PROTO J99720 Master Tool Set, 453 Pieces, SAE, 1/4 in/3/8 in/1/2 in/3/4 in Drive

The PROTO Master Tool Set (MPN J99720) is a 453-piece tool-only set from PROTO, featuring SAE sizing and 1/4 in, 3/8 in, 1/2 in, and 3/4 in socket drive sizes. It includes (12) retaining-ring pliers, (2) screw…

SKU 3G-OTH-267253

Also listed as: J 99720 · J-99720

Brand
PROTO
Item
J99720 Master Tool Set, 453 Pieces, SAE, 1/4 in/3/8 in/1/2 in/3/4 in Drive
Part Number
J99720
Category
Tool Only Sets
Available to Order
Also known as:J99720PROTO
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

PROTO
Manufacturer Part Number
J99720
Type
SAE, 1/4 in/3/8 in/1/2 in/3/4 in Socket Drive Size

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 Master Tool Set (MPN J99720) is a 453-piece tool-only set from PROTO, featuring SAE sizing and 1/4 in, 3/8 in, 1/2 in, and 3/4 in socket drive sizes. It includes (12) retaining-ring pliers, (2) screw starters, (31) socket bits, and (28) open end wrenches.

Frequently Asked Questions

What is the PROTO Master Tool Set J99720 used for?

The PROTO Master Tool Set J99720 is a 453-piece SAE tool set for industrial maintenance, repair, and assembly. It includes socket bits, open end wrenches, retaining-ring pliers, and screw starters, covering 1/4 in, 3/8 in, 1/2 in, and 3/4 in drive sizes for heavy-duty mechanical work.

What are the specifications of the PROTO J99720 tool set?

The PROTO J99720 is a 453-piece SAE tool set with 1/4 in, 3/8 in, 1/2 in, and 3/4 in socket drive sizes. It includes (12) retaining-ring pliers, (2) screw starters, (31) socket bits, and (28) open end wrenches. The set is tool-only and manufactured by PROTO.

Where to buy the PROTO Master Tool Set J99720 worldwide?

3G Electric supplies the PROTO Master Tool Set J99720 worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this 453-piece SAE tool set.

How to select the right PROTO tool set for industrial maintenance?

For industrial maintenance, choose a set with the drive sizes and tool types matching your fasteners. The PROTO J99720 covers 1/4 in through 3/4 in drives and includes pliers, starters, bits, and wrenches. Verify SAE sizing and total piece count against your typical repair tasks.

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
Not sure this is the right part? Photo-identify it→

PROTO Products

3G Electric supplies PROTO tool only sets. 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 →

Compatible alternatives & equivalents

More from PROTO

View all PROTO parts →
PROTO
PROTO
This tool-only set includes 1,184 pieces in Metric and SAE sizes, with socket drive sizes of 1/4 in, 3/8 in, 1/2 in, and 3/4 in. Contents include an electrician's plier, two screw starters, 21 hex keys, and 12 flare nut wrenches. Suitable for maintenance, repair, and assembly tasks requiring both precision and heavy-duty fastening
This 126-piece tool set includes slip-joint pliers, socket bits, and combination wrenches in SAE sizes. The set features 1/4 in and 3/8 in socket drive sizes, suitable for facility maintenance tasks such as repairing machinery and tightening fasteners
PROTO
This 126-piece tool set includes slip-joint pliers, socket bits, and combination wrenches in SAE sizes. The set features 1/4 in and 3/8 in socket drive sizes, suitable for facility maintenance tasks such as repairing machinery and tightening fasteners
PROTO
PROTO
This 184-piece metric tool set includes sockets, drive tools, hex keys, diagonal-cutting pliers, and a torque wrench. Designed for mechanical assembly, maintenance, and repair tasks requiring metric fasteners. Suitable for automotive, industrial, and manufacturing applications
SAE socket drive sizes of 1/4 in, 3/8 in, 1/2 in, and 3/4 in. Includes 1 long-nose pliers, 8 Phillips screwdrivers, 22 accessories, and 10 open end wrenches. Suitable for maintenance, repair, and assembly tasks
PROTO
SAE socket drive sizes of 1/4 in, 3/8 in, 1/2 in, and 3/4 in. Includes 1 long-nose pliers, 8 Phillips screwdrivers, 22 accessories, and 10 open end wrenches. Suitable for maintenance, repair, and assembly tasks
PROTO
PROTO
This tool-only set includes 1,398 pieces in Metric and SAE sizes with socket drive sizes of 1/2 in, 1/4 in, 3/4 in, and 3/8 in. The set contains a duck bill plier, 19 nut drivers, a drag link socket, and 6 double box wrenches. Suitable for fastening, wrenching, and plier tasks in industrial maintenance and repair
PROTO
PROTO
This 649-piece tool set includes sockets, wrenches, pliers, screwdrivers, and pipe wrenches in both Metric and SAE sizes. It features 1/2 in, 1/4 in, and 3/8 in socket drive sizes, suitable for a wide range of fastening and adjustment tasks in industrial maintenance and repair
This 92-piece tool set includes locking pliers, Phillips screwdrivers, accessories, and a pipe wrench. Sockets are provided in 1/4 in, 3/8 in, and 1/2 in drive sizes with both Metric and SAE dimensions. Suitable for mechanical maintenance, repair, and assembly tasks
PROTO
This 92-piece tool set includes locking pliers, Phillips screwdrivers, accessories, and a pipe wrench. Sockets are provided in 1/4 in, 3/8 in, and 1/2 in drive sizes with both Metric and SAE dimensions. Suitable for mechanical maintenance, repair, and assembly tasks
PROTO
PROTO
This tool-only set contains 1,011 pieces including 310 sockets, 6 double box wrenches, 1 bent nose plier, and 1 impact screw extractor. It supports both Metric and SAE sizes with 1/2 in, 1/4 in, 3/4 in, and 3/8 in socket drive sizes. Suitable for maintenance, repair, and assembly tasks requiring a comprehensive range of socket and wrench sizes

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first