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

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

📏Fits ties up to 15/32 in wide

🛠️Works with 120-250 lb rated ties

€ 94.95

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Description

🔧 Tighten with confidence, finish like a pro!

DURABLE NYLON BUILD - Crafted from high-quality nylon for long-lasting performance and reliability on the job.
ERGONOMIC COMFORT GRIP - Designed with handle grips that reduce hand fatigue during extended use.
HEAVY DUTY COMPATIBILITY - Optimized for ties rated between 120 to 250 pounds, perfect for professional-grade projects.
PRECISION TENSION CONTROL - Delivers consistent 65-pound tension for flawless cable tie installation every time.
TRUSTED LEGACY CRAFTSMANSHIP - Backed by Klein Tools’ 160+ years of American-made, professional-grade tool expertise.

The Klein Tools 86570 Tie Tensioning Tool is a robust, nylon-built manual device engineered to apply up to 65 pounds of tension on cable ties rated between 120 and 250 pounds. Featuring ergonomic handle grips for comfort and precision tension control, it ensures consistent, professional cable tie installations ideal for electrical, HVAC, automotive, and industrial applications. With over 160 years of trusted craftsmanship, Klein Tools delivers durability and performance that professionals rely on daily.

Specifications

ASIN	B004G3RO5G
Best Sellers Rank	#17,853 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Tie-Down Ratcheting
Brand Name	KLEIN TOOLS
Color	Factory
Country of Publication	Taiwan
Customer Reviews	4.7 4.7 out of 5 stars (2,537)
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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€ 94.95

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.

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