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 in max tie width

🛠️120-250 lbs tie rating

€ 95.46

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Description

🛠️ Tension like a pro, work like a legend.

COMFORT DRIVEN DESIGN - Ergonomic handle grips reduce hand fatigue, making long projects effortless and efficient.
COMPACT LIGHTWEIGHT - Weighing just 0.71 lbs, it’s easy to carry and maneuver on any job site or workspace.
VERSATILE COMPATIBILITY - Works seamlessly with ties rated from 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 between 120 and 250 pounds. It supplies up to 65 pounds of tension with ergonomic grips for comfort, making it ideal for professional-grade cable management and heavy-duty securing tasks. Trusted by tradespeople for over 160 years, this tool combines precision, strength, and comfort in a compact design.

Specifications

ASIN	B004G3RO5G
Best Sellers Rank	#61,579 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #57 in Tie-Down Ratcheting
Brand Name	KLEIN TOOLS
Color	Factory
Country of Publication	Taiwan
Customer Reviews	4.7 4.7 out of 5 stars (2,539)
Global Trade Identification Number	00092644865701
Included Components	Tools
Item Type Name	Nylon Tie Tensioning Tool
Item Weight	0.71 Pounds
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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€ 95.46

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

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