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Klein Tools D50512B 12-Inch Adjustable Pliers, Quick-Adjust Klaw Pump Pliers, V-Jaw, Hardened Teeth for Maximum Torque

Based on 62 reviews
Condition: New
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$31.98
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Nov 5
Order within 21 hours and 12 minutes

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At a glance

Condition
New
Size
1-Piece (12-in)
Model
D50512B
Dimensions
11.91"L x 2.36"W
Weight
1 lb
Color
Black
Material
Stainless Steel
In the box
Quick-Adjust Klaw™ Pump Pliers12-Inch

Features 5

  • MAXIMUM TORQUE: Unique plier jaw design provides a strong, slip-free hold, allowing for maximum torque
  • ENHANCED GRIP: Equipped with hardened teeth, minimizing wear and ensuring a secure hold on objects
  • DURABLE CONSTRUCTION: Full-steel body for superior strength and long-lasting performance
  • QUICK ADJUST KLAW: Enables swift and effortless one-handed adjustment of plier jaws for quick adaptability

Description

The Klein Quick-Adjust Klaw Pump Pliers feature a unique curved jaw with multiple contact points, delivering maximum torque and a secure grip. The hardened teeth on the jaw's gripping surface minimize wear and provide a strong, positive hold. Its all-steel construction ensures exceptional strength and long-lasting performance, even in the most demanding tasks. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsman continue to put six generations of expertise into every tool we create by using only the highest quality materials, superior workmanship, and keeping manufacturing as close to home as we can. Klein isn't just the name of our company, it's also our family name. And since we're an American company that's family-owned and family-run, you know you can count on us to be here tomorrow. Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day ... Since 1857.

Specs 20

Brand KLEIN TOOLS
Material Stainless Steel
Product Dimensions 11.91"L x 2.36"W
Color Black
Handle Material Stainless Steel
Item Weight 1 pounds
Specific Uses For Product Twisting
Specification Met Likely meets relevant industry standards, but no specific certifications mentioned

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


Great tool
Size: 1-Piece (12-Inch)
Great product there tolls never let me down.
Reviewed in the United States on August 17, 2026 by kevin hensley

Jaws wish it had this grip!
Size: 1-Piece (12-Inch)
My favorite tool on the job!
Reviewed in the United States on August 12, 2026 by Amazon Customer

It's Klein they seem to never let me down and they didn't this time either.
Size: 1-Piece (12-Inch)
Solid everyday tool. I keep it on my cart and it's my go-to Pliers. I'll definitely be doing a video on these.
Reviewed in the United States on April 30, 2026 by MrDrennen

Great for crimping when pipe fitting
Size: 1-Piece (12-Inch)
Excellent tool
Reviewed in the United States on May 20, 2026 by Reagan

Would buy again
Size: 1-Piece (12-Inch)
Use these a lot. Probably abused them. Still getting the job done. Love all the little notches in it
Reviewed in the United States on February 19, 2026 by Cole roberts

Very good
Size: 1-Piece (12-Inch)
Best channel locks in my opinion better than my knipex
Reviewed in the United States on November 1, 2025 by David

Great tool
Size: 1-Piece (12-Inch)
Great quality
Reviewed in the United States on August 4, 2025 by kaojin

Spend the extra few dollars and buy knipex!!
Size: 1-Piece (12-Inch)
Typical made in China, poor casting, poor finishing with non hardened teeth. These are a direct copy of NWS brand pliers that are far superior for just a few extra bucks. I had hoped with a name like Klein on them they would be good quality, but they are just more junk low quality tools. I would be ashamed to put my name on these. ... show more
Reviewed in the United States on April 27, 2025 by Andy
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