We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
⌕
RFQ CartGet a QuoteSign inSign up
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std - Fastener-Holding Nut Drivers
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

Brand
KLEIN TOOLS
Item
Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std
Category
Fastener-Holding Nut Drivers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

KLEIN TOOLS
Manufacturer Part Number
646-1/4M
Type
SAE, With Magnetized Tip, Std
Tip Size
1/4 in
View Full Spec Sheet

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 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.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 5/16 in Tip Size (MPN 646-5/16M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 5/16 in Tip Size (MPN 646-5/16M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, Without Magnetized Tip, Std, 6 in Shank Lg (MPN 646-7/16). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, Without Magnetized Tip, Std, 6 in Shank Lg (MPN 646-7/16). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, Without Magnetized Tip, Std, 6 in Shank Lg (MPN 646-1/4). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, Without Magnetized Tip, Std, 6 in Shank Lg (MPN 646-1/4). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, Without Magnetized Tip, Std, 6 in Shank Lg (MPN 646-1/2). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, Without Magnetized Tip, Std, 6 in Shank Lg (MPN 646-1/2). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, Without Magnetized Tip, Std, 6 in Shank Lg (MPN 646-5/16). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, Without Magnetized Tip, Std, 6 in Shank Lg (MPN 646-5/16). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, Without Magnetized Tip, Std, 6 in Shank Lg (MPN 646-3/8). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, Without Magnetized Tip, Std, 6 in Shank Lg (MPN 646-3/8). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.

More from KLEIN TOOLS

View all KLEIN TOOLS parts →
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 3/16 in Tip Size (MPN 646-3/16M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 3/16 in Tip Size (MPN 646-3/16M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 1/2 in Tip Size (MPN 630-1/2M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 1/2 in Tip Size (MPN 630-1/2M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 3/8 in Tip Size (MPN 646-3/8M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 3/8 in Tip Size (MPN 646-3/8M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 5/16 in Tip Size (MPN 630-5/16M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 5/16 in Tip Size (MPN 630-5/16M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 1/2 in Tip Size (MPN 646-1/2M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 1/2 in Tip Size (MPN 646-1/2M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 1/4 in Tip Size (MPN 630-1/4M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 1/4 in Tip Size (MPN 630-1/4M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 1/4 in Tip Size (MPN 618-1/4M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 1/4 in Tip Size (MPN 618-1/4M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 3/8 in Tip Size (MPN S126M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.
KLEIN TOOLS
KLEIN TOOLS Hollow Round Shank Nut Driver: Straight, SAE, With Magnetized Tip, Std, 3/8 in Tip Size (MPN S126M). Key specifications — attr1214485: Round; attr1214505: KLEIN TOOLS.