Hose Tools · MD503NA
6-8mm Flexible Hose Clamp Driver
Worm Drive Clamp Tool for Confined Spaces · Hose Clip Driver Flexible Nut Driver Sizes Sold Individually
Pair it with
This item: 6-8mm Flexible Hose Clamp Driver (7mm)
$8.99
78 Piece 1/4 Drive Bit and Socket Set
$69.99
Recommended for general maintenance
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Why this one
Flexible shaft
A flexible shaft bends around brackets, hoses and engine accessories to reach the hex head of a hose clip in confined spaces.
Fits worm drive clips
Made to fit most commonly used worm drive hose clips, which covers coolant, heater, vacuum, fuel and turbo plumbing on many vehicles.
Screwdriver-style handle
The handle gives a comfortable, secure grip for controlled torque overhead, sideways or deep inside a wheel well.
6, 7 and 8 mm ends
Available with a 6, 7 or 8 mm hex end, sold individually. The 7 mm version weighs 146 g.
Read the full description
Getting a wrench or socket onto a hose clamp that sits three inches behind an exhaust manifold is one of those small jobs that eats big chunks of time. This tool solves the problem with a flexible shaft that bends around brackets, hoses, and engine accessories to reach the clip hex head directly.
The 7 mm hex end matches the screw head on most worm drive hose clips, including popular Jubilee brand clips. That means one tool covers coolant hoses, heater cores, vacuum lines, fuel lines, and turbo plumbing on the vast majority of metric-fastener vehicles and equipment.
The screwdriver-style handle provides a comfortable, secure grip for controlled torque in any orientation—overhead, sideways, or deep inside a wheel well. At just 146 g, the tool is light enough to keep in a belt pouch or glove-box kit so it is always within reach when a hose needs service.
Whether you work on cars, trucks, boats, or industrial machinery, hose clamp access in tight quarters is a recurring challenge. This flexible driver turns that challenge into a straightforward task, saving time and reducing the temptation to over-torque a clip with an ill-fitting tool.
Get it in a set
This hose tools also comes in these 3 sets, with the tools that go with it.
Specifications
| Type | Auto Tools |
|---|---|
| Category | Hose Tools |
| Part number | MD503NA |
Data sheet
Full details from Teng Tools. Download PDF
Lifetime warranty
Send a photo and your order number. Same-day shipping on replacements.
Ships from Texas
From our Fort Worth warehouse.
Questions?
Call (817) 767-3392.
Shipping
Free shipping on orders over $99. Orders are stocked, picked and shipped from our warehouse in Fort Worth, Texas — orders placed on business days ship same-day wherever possible.
Lifetime warranty
Teng Tools hand tools are backed by a lifetime warranty against manufacturing defects. Screwdriver bits and socket bits are consumables and are guaranteed to meet dimensional standards. Torque wrenches and air tools can be serviced and recalibrated on request — contact us to arrange it.
Returns
Not right for the job? Contact us within 30 days of delivery and we'll sort out a return or exchange. Tools must be unused and in their original packaging. Warranty claims are handled separately — a defective tool is our problem, not yours.
Why Teng Tools?
Swedish Design Since 1985
Trusted in 30+ countries. Designed in Sweden, built to ISO and DIN standards.
Shipped Fast from Texas
US warehouse in Fort Worth, so orders move fast. TAA approved for government and defense.
Lifetime Warranty
Something goes wrong? Send a photo and your order number — same-day shipping on replacements.
The Devil Is in the Detail
Satin-finish wrenches, through-blade screwdrivers, heavy-gauge storage — built to last.


