what is the min. thickness tool can handle ? should there be a space between the clamp bar and the inside tool face?

I've used this tool to tighten the smallest zip ties. I believe the answer to your second question is no. I prefer this tool to one I have that sets a spring tension.

Will this work on 1/8 inch diameter fuel connections on a boat?

I'm not really sure what you mean by 1/8" connections on a boat. This is a nylon bander. It will not work with metal bands if that's what you're referring to.

Will these work with large hvac pull ties?

Yes that is what I purchased them for and they worked great

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Klein Tools 86570 Tie Tensioning Tool, for Ties Rated at 120 to 250-Pound, Supplies up to 65-Pound of Tension, Handle Grips for Comfort

Product ID: 345879210

Details

Brand
KLEIN TOOLS
Colour
Factory
Material
Nylon
Maximum diameter
1.2
Style
Tensioning

💪65 lbs max tension

📏15/32-inch max tie width

🛠️Rated for 120-250 lbs ties

€ 95.05

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Description

🛠️ Tension like a pro, work like a boss!

COMFORT DRIVEN DESIGN - Ergonomic handle grips reduce hand fatigue, empowering you to work longer with ease.
COMPACT LIGHTWEIGHT - Weighing just 322 grams, it’s the perfect tool to carry on-site without bulk or hassle.
VERSATILE COMPATIBILITY - Works seamlessly with ties rated between 120 to 250 pounds, covering a broad range of heavy-duty applications.
TRUSTED LEGACY CRAFTSMANSHIP - Backed by Klein Tools’ 160+ years of American-made quality and reliability—tools that professionals swear by.
POWERFUL PRECISION TENSIONING - Delivers up to 65 lbs of controlled tension for secure, professional results every time.

The Klein Tools 86570 Tie Tensioning Tool is a durable, nylon-built manual tensioner designed for cable ties rated 120-250 lbs. It supplies up to 65 lbs of tension with ergonomic grips for comfort, making it ideal for professional-grade cable management tasks. Trusted by pros for over 160 years, this lightweight tool ensures precision and reliability on every job.

Specifications

ASIN	B004G3RO5G
Best Sellers Rank	#33,686 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #29 in Tie-Down Ratcheting
Brand Name	KLEIN TOOLS
Color	Factory
Country of Publication	Taiwan
Customer Reviews	4.7 4.7 out of 5 stars (2,538)
Global Trade Identification Number	00092644865701
Included Components	Tools
Item Type Name	Nylon Tie Tensioning Tool
Item Weight	322 g
Manufacturer	KLEIN TOOLS
Manufacturer Part Number	86570
Material Type	Nylon
Maximum Diameter	1.2 Centimeters
Model Number	86570
Number of Pieces	1
Product Style	Tensioning tool
Tensile Strength	65 Pounds
UPC	092644865701
Unit Count	1 Count

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€ 95.05

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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