EXW Singapore — collect or forward from our Singapore office.

3G Electric
KLEIN TOOLS #1 Square Screwdriver, 7 3/4 in Overall Length - General Purpose Square Screwdrivers
KLEIN TOOLSGeneral Purpose Square Screwdrivers

KLEIN TOOLS #1 Square Screwdriver, 7 3/4 in Overall Length

The KLEIN TOOLS General Purpose Square Screwdriver (MPN 661) is a #1 tip size, standard-length square screwdriver with a 7 3/4 in overall length. It features a Cushion grip handle for user comfort.

SKU 3G-OTH-301710

Brand
KLEIN TOOLS
Item
#1 Square Screwdriver, 7 3/4 in Overall Length
Part Number
661
Category
General Purpose Square Screwdrivers
Available to Order
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

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

KLEIN TOOLS
Manufacturer Part Number
661
Type
#1 Tip Size
Overall Lg
7 3/4 in

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

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

Product Description

The KLEIN TOOLS General Purpose Square Screwdriver (MPN 661) is a #1 tip size, standard-length square screwdriver with a 7 3/4 in overall length. It features a Cushion grip handle for user comfort.

Frequently Asked Questions

What is the KLEIN TOOLS 661 square screwdriver used for?

The KLEIN TOOLS 661 square screwdriver is used for driving and removing square-drive (Robertson) fasteners in electrical, construction, and maintenance applications. Its #1 tip size and 7 3/4 in overall length make it suitable for standard-duty work where a cushioned grip improves user comfort.

What are the specifications of the KLEIN TOOLS 661 screwdriver?

The KLEIN TOOLS 661 is a general-purpose square screwdriver with a #1 tip size, 7 3/4 in overall length, and a cushion grip handle. It is manufactured by KLEIN TOOLS under MPN 661. These specs suit standard-length tasks requiring a comfortable, non-slip grip.

Where to buy KLEIN TOOLS 661 square screwdriver worldwide?

3G Electric supplies the KLEIN TOOLS 661 square screwdriver worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this #1 tip size, 7 3/4 in screwdriver with cushion grip.

How to select the right KLEIN TOOLS square screwdriver tip size?

Select the KLEIN TOOLS square screwdriver tip size by matching it to the fastener's square recess. The #1 tip fits smaller screws, while #2 and #3 are for larger fasteners. For the 661 model, the #1 tip and 7 3/4 in length suit standard electrical and assembly work.

Used in

Common applications for KLEIN TOOLS
Electrical installation — Klein Tools lineman's pliers (D2000-7, J2000-9NE) for cutting and gripping wire in panel and conduit work.
Data cabling — Klein Tools ratcheting cable cutter (63601) for cleanly cutting data cable up to 2 1/16 in diameter without burrs.
Fence and sign installation — Klein Tools manual post driver (5SDSH) for driving posts and stakes into the ground.
General construction — Klein Tools straight-claw hammer (H80820) for driving and pulling nails in framing and electrical tasks.
Portable lighting — Klein Tools rechargeable flashlight (56074) for illumination in dark work areas, with 1,000 lumens output.
Cable preparation — Klein Tools ratcheting cable cutter (63060) for cutting aluminum electric cable up to 750 kcmil in heavy-duty applications.
Not sure this is the right part? Photo-identify it→

KLEIN TOOLS Products

3G Electric supplies KLEIN TOOLS general purpose square screwdrivers. 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 KLEIN TOOLS

View all KLEIN TOOLS parts →

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first