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KLEIN TOOLS General Purpose Square Screwdriver: Std Lg, #1 Tip Size - General Purpose Square Screwdrivers
KLEIN TOOLSGeneral Purpose Square Screwdrivers

KLEIN TOOLS General Purpose Square Screwdriver: Std Lg, #1 Tip Size

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
General Purpose Square Screwdriver: Std Lg, #1 Tip Size
Category
General Purpose Square Screwdrivers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

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

Technical Documents

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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 Phillips screwdriver (MPN 603-6) for securing terminal blocks and panel covers.
Telecommunications cabling — Klein Tools fiberglass fish tape repair kit (MPN 56025) for maintaining pulling tools in conduit runs.
Industrial maintenance — Klein Tools ratchet wire crimper (MPN 3005CR) for terminating non-insulated connectors on 10-22 AWG wire.
Field service — Klein Tools leather tool pouch (MPN 5167) for carrying knives and screwdrivers on a work belt.
Precision assembly — Klein Tools torque screwdriver (MPN 57032) for applying controlled torque to fasteners in equipment enclosures.
General fabrication — Klein Tools adjustable wrench (MPN D509-8) for gripping nuts and bolts in tight spaces.

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.

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Cross-referenced by specification & description
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KLEIN TOOLS Insulated Square Screwdriver: Long Lg, #1 Tip Size, 8 1/4 in Overall Lg, 4 in Shank Lg (MPN 661-4-INS)
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KLEIN TOOLS Insulated Square Screwdriver: Long Lg, #1 Tip Size, 8 1/4 in Overall Lg, 4 in Shank Lg (MPN 661-4-INS)
KLEIN TOOLS General Purpose Slotted Screwdriver: Steel, 1/8 in Tip Size, Std Lg, 5 3/4 in Overall Lg (MPN 608-3)
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KLEIN TOOLS General Purpose Slotted Screwdriver: Steel, 1/8 in Tip Size, Std Lg, 5 3/4 in Overall Lg (MPN 608-3)

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