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Klein Tools 631 Tool Set, Nut Driver Set w/Hex Nut Sizes 3/16, 1/4, 5/16, 11/32, 3/8, 7/16 and 1/2-Inch on 3-Inch Full Hollow Shaft, 7-Piece

Klein Tools 631 Tool Set, Nut Driver Set w/Hex Nut Sizes 3/16, 1/4, 5/16, 11/32, 3/8, 7/16 and 1/2-Inch on 3-Inch Full Hollow Shaft, 7-Piece

Q: I lost the 5/16 driver from the set. Can I order a replacement? Where?

Just do an Amazon search for "5/16 Klein nut driver" and it's like $10.

Q: What sizes are these set?

the size's are 3/16 , 1/4 , 5/16 , 11/32 , 3/8 , 7/16 , 1/2

Q: What sizes does this set have?

3/16, 1/4, 5/16, 3/8, 11/32, 7/16, and 1/2"

Q: Are they made in USA?

Mine are clearly marked > Made in the USA!!

Product ID: 339415671

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Details

Brand
KLEIN TOOLS
Number of Items
1
Head style
Three-point
Material
Alloy Steel
Colour
Black/ Yellow

✋Cushion grip handles for torque & comfort

🔩7-piece hex sizes 3/16" to 1/2"

🛠️3-inch full hollow shafts for long bolts

Frequently Bought Together

Klein Tools 631 Tool Set, Made in USA, Nut Driver Set w/Hex Nut Sizes 3/16, 1/4, 5/16, 11/32, 3/8, 7/16 and 1/2-Inch on 3-Inch Full Hollow Shaft, 7-Piece

Klein Tools 65160 Tool Set, Made in USA, Metric Nut Driver Set Sizes 5, 5.5, 6, 7, 8, 9, and 10 mm, 3-Inch Chrome-Plate Hollow Shafts, 7-Piece

Klein Tools 85148 Screwdriver Set with Magnetizer / Demagnetizer for Magnetic Tips, Flathead and Phillips, Home Improvement, 9-Piece

Description

🔧 Elevate your toolkit with precision, comfort, and legacy—because every detail counts.

COMFORT THAT LASTS - Ergonomic cushion grip handles deliver superior torque with zero slip—your hand’s new best friend.
BUILT TO OUTPERFORM - Internal flanges provide a twist-resistant shaft anchor for unmatched durability under pressure.
LEGACY OF EXCELLENCE - Crafted by Klein Tools, a family-owned brand trusted by pros since 1857—join the elite.
PRECISION MEETS POWER - Color-coded Tip-Ident ends for instant hex size recognition—work smarter, not harder.
REACH FURTHER WORK BETTER - Full hollow shafts designed to tackle long bolt applications effortlessly.

The Klein Tools 631 Nut Driver Set offers seven essential hex sizes (3/16" to 1/2") with 3-inch full hollow shafts, perfect for long bolt applications. Featuring ergonomic cushion grip handles and color-coded Tip-Ident ends for quick size recognition, this professional-grade set is built with internal flanges for twist resistance and crafted from durable alloy steel. Trusted by professionals since 1857, Klein Tools delivers unmatched quality and comfort in every turn.

Specifications

Manufacturer	Klein Tools
Part number	631
Item Weight	670 g
Product Dimensions	3.81 x 19.05 x 34.29 cm; 670 g
Item model number	631
Size	Non-Magentic
Color	Black/ Yellow
Style	Non-Magentic
Finish	Brushed
Material	Alloy Steel
Pattern	Tool
Shape	Rectangular
Item thickness	1 Inches
Power source type	corded-electric
Item Package Quantity	1
Head Style	Three-point, Hexagon
Measurement System	Inch
Specification met	ANSI
Special Features	Ergonomic
Specific uses	personal
Included components	630-3/16, 630-1/4, 630-5/16, 630-11/32, 630-3/8, 630-7/16, and 630-1/2.
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

I lost the 5/16 driver from the set. Can I order a replacement? Where?

What sizes are these set?

What sizes does this set have?

Are they made in USA?

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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