KLEIN TOOLSFastener-Holding Nut Drivers

KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std

The KLEIN TOOLS Hollow Round Shank Nut Driver: Straight (MPN 646-1/4M) is a fastener-holding nut driver with a round shank and a magnetized tip. It features a 1/4 in tip size and is designed for SAE fasteners.

SKU 3G-OTH-303178

Also listed as: 64614M · 646 1 4M · 646-1-4M

Brand

KLEIN TOOLS

Item

Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std

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

646-1/4M 

Type

SAE, With Magnetized Tip, Std 

Tip Size

1/4 in 

Technical Documents

No technical documents available for this product.

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KLEIN TOOLS Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the KLEIN TOOLS 646-1/4M nut driver used for?

The KLEIN TOOLS 646-1/4M hollow round shank nut driver is used for driving and removing SAE fasteners in electrical, mechanical, and industrial maintenance applications. Its magnetized tip holds screws securely, and the hollow shank accommodates long bolts. 3G Electric supplies this tool globally.

What are the specifications of the KLEIN TOOLS 646-1/4M nut driver?

The KLEIN TOOLS 646-1/4M nut driver has a 1/4 in tip size, a round shank, and a magnetized tip. It is designed for SAE fasteners and is a standard-length, hollow-round-shank type. The manufacturer part number is 646-1/4M. 3G Electric sources genuine KLEIN TOOLS products for worldwide delivery.

Where to buy KLEIN TOOLS 646-1/4M nut driver worldwide?

3G Electric supplies the KLEIN TOOLS 646-1/4M hollow round shank nut driver to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time. We source genuine KLEIN TOOLS products for industrial applications.

How to select the right KLEIN TOOLS nut driver for SAE fasteners?

To select the right KLEIN TOOLS nut driver, match the tip size to your fastener's hex size. For SAE fasteners, choose a driver with a 1/4 in tip like the 646-1/4M. Consider shank type: hollow round shanks accommodate longer bolts. Magnetized tips help hold screws. 3G Electric can advise on your application.

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 fastener-holding nut drivers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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