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Fastrax Mini Hex Cross Wrench 4.0mm 5.0mm 5.5mm 7.0mm FAST627

Model No: FAST627


Coming Soon - Stock Arriving: 15/07/2026

Stock Arriving: 15/07/2026

£1.99

£0.15

£1.84

Inc VAT

1 Year Warranty
We Accept

Overview

The Fastrax Mini Hex Cross Wrench is an essential tool for any RC enthusiast working on their vehicles. This compact, multi-size hex wrench combines four commonly needed sizes in one convenient tool, making it perfect for field adjustments, maintenance, and assembly work on RC cars, trucks, and buggies across the UK. Whether you're a seasoned RC racer fine-tuning your competition machine or a weekend basher keeping your ready to run RC in top condition, this cross wrench design delivers practicality and efficiency in your toolkit.

Designed specifically for the demands of RC model building and maintenance, the Fastrax Mini Hex Cross Wrench features four different hex sizes arranged in a cross pattern, allowing you to carry multiple sizes without the bulk of traditional individual wrenches. The compact Mini format makes it ideal for transportation to the track, field, or your local RC hobby shop, ensuring you always have the right tool when you need it. This is the kind of precision hand tool that separates well-maintained RC models from neglected ones, giving you the confidence to tackle adjustments and repairs with the correct size every time.

For RC car UK enthusiasts, having the right tools makes all the difference between frustration and smooth operation. The Fastrax brand is recognised throughout the RC modelling community for producing reliable, affordable accessories that get the job done. This Mini Hex Cross Wrench represents the practical thinking behind Fastrax's product range, combining functionality with value to support both experienced competitors and newcomers to the hobby.

Key Features

  • Four hex sizes in one tool — The wrench includes 4.0mm, 5.0mm, 5.5mm, and 7.0mm hex sizes arranged in a cross pattern, meaning you can handle the vast majority of fasteners on standard RC models without carrying four separate tools, saving space and weight in your pit box or toolbag.
  • Cross wrench design — The cross arrangement of the four hex heads provides excellent accessibility and control from any angle, allowing you to reach into tight spaces on your RC chassis and suspension components without awkward positioning or restricted movement.
  • Compact Mini format — The smaller size compared to full-scale wrenches makes this tool perfectly proportioned for RC work, where fasteners and components are inherently smaller and require more precision handling than full-scale machinery.
  • Versatile size range — The selection of sizes covers the most common hex fasteners found on modern RC buggies, trucks, crawlers, and short course vehicles, from suspension adjustments to body mounting and internal components.
  • Quality Fastrax construction — Built to the standards you'd expect from Fastrax, a trusted name in RC accessories, this wrench is engineered to withstand the demands of regular track use and field maintenance without stripping hex heads or bending.

Technical Performance

The Fastrax Mini Hex Cross Wrench is manufactured to precise engineering standards, with each hex socket accurately machined to provide a perfect fit on your RC fasteners. The cross wrench configuration ensures that all four sizes are immediately accessible without needing to rotate or reposition the tool between size changes. Each hex chamber is hardened for durability, resisting wear from repeated use on different materials including aluminium, steel, and composite fasteners commonly found on RC vehicles. The compact Mini design maintains structural integrity whilst reducing overall weight and bulk, making this an indispensable addition to any RC toolkit whether you're working on a 1/10 scale buggy, a crawler, or a stadium truck. The precision manufacturing means you'll achieve proper fastener engagement without the risk of cam-out or stripping, which is critical when working on expensive RC components and precision assemblies.

What's in the Box

  • Fastrax Mini Hex Cross Wrench with 4.0mm, 5.0mm, 5.5mm, and 7.0mm sizes

Frequently Asked Questions

  • What are the four hex sizes included in the Fastrax Mini Hex Cross Wrench? — The wrench provides 4.0mm, 5.0mm, 5.5mm, and 7.0mm hex sizes, which are the most commonly used fastener sizes found on modern RC cars, buggies, and trucks sold and raced throughout the UK.
  • Is the cross wrench design really better than individual wrenches? — Yes, the cross design offers several advantages: it saves space in your toolbag, reduces weight you need to carry to the track, provides quick access to all four sizes without searching, and costs significantly less than purchasing four individual quality hex wrenches. The cross arrangement also prevents getting hex tools mixed up or lost during a racing event.
  • What makes this Mini version different from standard Fastrax hex wrenches? — The Mini format is specifically sized for RC work, with proportions matched to the scale of RC fasteners and components. This makes it more comfortable and precise to use on small RC models compared to larger tools designed for full-scale applications, and it's much easier to transport and store.
  • Is this tool suitable for all RC models? — The hex sizes included (4.0, 5.0, 5.5, and 7.0mm) cover the vast majority of fasteners on modern RC buggies, short course trucks, crawlers, and stadium trucks. Some specialty vehicles or very large scale models may use different sizes, but for most RC cars in the UK market, this wrench covers your basic maintenance and adjustment needs.
  • How durable is the Fastrax Mini Hex Cross Wrench? — Fastrax products are engineered for durability in the RC hobby environment. The hex chambers are hardened through precision manufacturing to resist stripping and wear from repeated use. With proper care and maintenance, this tool will provide years of reliable service through countless track sessions and maintenance operations.
  • Why should I invest in a quality hex wrench rather than using cheap alternatives? — A quality hex wrench like this Fastrax tool provides precise fit on your fasteners, preventing cam-out and stripping, which can damage expensive RC components. Cheap wrenches often have poorly machined hex chambers that don't fit properly, leading to frustration and potential damage to your vehicle. For the small investment, this tool protects your RC investment.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Fastrax Mini Hex Cross Wrench 4.0/5.0/5.5/7.0mm today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.

  • Brand: Fastrax
  • Model Number: FAST627
  • EAN: 5056135768495
  • Product Type: Mini Hex Cross Wrench
  • Hex Sizes Included: 4.0mm, 5.0mm, 5.5mm, 7.0mm
  • Design: Cross wrench configuration with four hex heads
  • Format: Compact Mini size for RC applications
  • Construction: Precision hardened hex chambers
  • Recommended Use: RC car maintenance, field adjustments, assembly and fastener work

We want to make sure your delivery goes smoothly, so here are some important details about our service:

  • For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
  • Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
  • Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
  • If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
  • We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
  • As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
  • If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
  • For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.