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 is a straight, fastener-holding nut driver with a round shank and a magnetized tip. It has a 5/16 in tip size and is SAE. The manufacturer part number is 646-5/16M.

SKU 3G-OTH-303192

Also listed as: 646516M · 646 5 16M · 646-5-16M

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

646-5/16M 

Type

SAE, With Magnetized Tip, Std 

Tip Size

5/16 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 Hollow Round Shank Nut Driver used for?

This nut driver is used for fastening and loosening nuts and bolts in electrical, mechanical, and maintenance applications. Its hollow round shank allows it to fit over long threaded rods, while the magnetized tip holds fasteners securely during installation.

What are the specifications of the KLEIN TOOLS 646-5/16M nut driver?

The KLEIN TOOLS 646-5/16M is a straight, fastener-holding nut driver with a round shank and a magnetized tip. It has a 5/16 in SAE tip size and is designed for standard nut-driving tasks. The manufacturer part number is 646-5/16M.

Where to buy KLEIN TOOLS nut drivers worldwide?

3G Electric supplies KLEIN TOOLS nut drivers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source the 646-5/16M or other KLEIN TOOLS models for your project.

How to maintain a KLEIN TOOLS magnetized nut driver?

To maintain your KLEIN TOOLS nut driver, keep the magnetized tip clean and free of metal debris. Wipe the shank after use to prevent corrosion. Avoid dropping the tool, as impact can weaken the magnet. Store in a dry place to extend service life.

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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