Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
WIHA 3/8" Drive Metric Insulated Hand Socket - 3/8" Drive Metric Insulated Hand Sockets
WIHA3/8" Drive Metric Insulated Hand Sockets

WIHA 3/8" Drive Metric Insulated Hand Socket

The WIHA Insulated Socket is a 3/8" Drive Metric Insulated Hand Socket (MPN 31521) with a 21 mm socket size, 12-point configuration, and 1 1/8 in overall length. It features a Chrome finish and is Not Tether Capable.

SKU 3G-OTH-407703

Brand
WIHA
Item
3/8" Drive Metric Insulated Hand Socket
Part Number
31521
Category
3/8" Drive Metric Insulated Hand Sockets
Available to Order
Also known as:31521WIHA
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.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

WIHA
Manufacturer Part Number
31521
Type
12-Point, Std
Overall Lg
1 1/8 in
Socket Size
21 mm

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

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

Product Description

The WIHA Insulated Socket is a 3/8" Drive Metric Insulated Hand Socket (MPN 31521) with a 21 mm socket size, 12-point configuration, and 1 1/8 in overall length. It features a Chrome finish and is Not Tether Capable.

Frequently Asked Questions

What is the WIHA Insulated Socket used for?

The WIHA Insulated Socket is used for safely tightening or loosening fasteners on live electrical equipment up to 1000 V AC. It is designed for electricians and maintenance technicians working on energized panels, motors, and switchgear where arc-flash protection is required.

What are the specifications of the WIHA Insulated Socket 31521?

The WIHA Insulated Socket (MPN 31521) has a 3/8 in drive size, 21 mm socket size, 12-point standard configuration, and 1 1/8 in overall length. It features a Chrome finish and is Not Tether Capable. This metric socket is part of WIHA's insulated hand tool line.

Where to buy WIHA Insulated Socket 31521 worldwide?

3G Electric supplies the WIHA Insulated Socket 31521 worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source and deliver this WIHA tool to any country.

How to select the correct WIHA insulated socket size?

To select the correct WIHA insulated socket, match the drive size (3/8 in) to your ratchet, and the socket size (21 mm) to the fastener hex. Ensure the socket is rated for live work (IEC 60900). For metric fasteners, use the 21 mm size; for inch fasteners, choose the corresponding inch size.

Used in

Common applications for WIHA
Electrical maintenance — Wiha insulated multi-bit screwdriver (MPN 28391) for work on live circuits up to 1,000 V AC
Electronics assembly — Wiha PicoFinish precision slotted screwdriver 2.0 mm (MPN 26029) for fine fastening on circuit boards
Mechanical maintenance — Wiha metric open-end wrench 17 mm (MPN 20017) for tightening nuts and bolts on machinery
Confined space fastening — Wiha 22 mm box-end wrench with 15-degree offset (MPN 53KE46) for recessed fasteners
Instrumentation calibration — Wiha precision screwdrivers for adjusting small slotted screws in control devices
General plant maintenance — Wiha SAE open-end wrench 9/16 in (MPN 20138) for equipment with imperial fasteners
Not sure this is the right part? Photo-identify it→

WIHA Products

3G Electric supplies WIHA 3/8" drive metric insulated hand 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 →

More from WIHA

View all WIHA parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first