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Free Saturday Delivery on orders over £75

Product Details

Zinc plated hexagon steel with slightly offset handle.

Technical Specification
Brand Monument
Manufacture ID 2054X
Type Spanners
Type Hex
Delivery details

Covid-19 Update

  • Free Next Business Day delivery for orders over £25 to home and site is available for orders placed before 2pm
  • Saturday and Sunday delivery is now available for orders placed before 2pm on Friday for Saturday delivery and 2pm Saturday for Sunday delivery, see here for details
  • We have temporarily suspended our Pre-12 delivery service
  • Once your order has been dispatched you will receive an invoice email with the courier details and your tracking number
  • Alternatively go to MyAccount, click on your Order History, click on the TRACK icon to link through to the carrier website and the tracking details for your delivery
  • If your order contains more than one item it may be split into two deliveries as we manage volume across our network
  • Due to carrier constraints it is not currently possible to deliver age restricted items. Please use our Click & Collect service for these products
  • Delivery direct from suppliers is now available and specific delivery times will be displayed on the product page
Order Value: Under £25 Over £25 but less than £75 £75 & Over
Next Business Day Delivery (Mon-Fri) usually before 6pm £5 Free Free
Pre-12 Delivery before 12 noon Next Business Day £10 £5 £5
Remote areas standard delivery (2-4 days) £5 Free Free
Saturday Delivery order by 2pm Friday £10 £5 Free
Sunday Delivery order by 2pm Saturday £10 £5 Free

Please note items delivered by our suppliers are not available for the options above. Delivery times may vary.

More about Delivery & Returns
Click & Collect details

Covid 19 Update

Click & Collect

  • Safe contactless collection is available 7 days a week at our branches
  • Our branches are open 8am-5pm Mon-Sat and 9am-4pm Sun
  • Keeping our colleagues and customers safe and well and respecting stringent social distancing requirements is our number one priority – 2 metre rule enforced
  • Our available product range will not require more than 1 person to lift
  • Please see our guide to click and collect below

  • Please ensure that your mobile number is added so that we can text you when your order is ready to collect

Call & Collect

Due to current trading conditions we have suspended our Call & Collect service until further notice.

If you are using our Click & Collect service please note the following:
  • Order online or over the phone and collect in branch from 5 minutes later.
  • Ensure you check stock is available for collection at your chosen branch.
  • Check branch opening hours to ensure you have sufficient time to collect.
  • For items not available for same day collection, place order before 7pm Mon-Fri (4pm Sun) and you can collect Next Business Day (Mon-Fri) after 3pm.
  • If we have your mobile number, we’ll send you a text when your order is ready to collect.
Valve Spanner & Air Release Key 12mm Hex is rated 3.6 out of 5 by 10.
Rated 3 out of 5 by from Good tool but toolstation should specify the size Does the job IF the size is right for your rad. Toolstation don't specify the size so you have to buy and hope.
Date published: 2020-05-26
Rated 4 out of 5 by from Nice price Fit lovely into my shower unit I tried to fix. Took it apart ok but didn’t help me fix the dripping, great price tho compared to other brands
Date published: 2020-05-19
Rated 5 out of 5 by from Great service I bought this tool 2 weeks ago during this pandemic situation through click and collect. The order was ready to collect in 15 minutes which was very impressive.
Date published: 2020-04-20
Rated 5 out of 5 by from perfect DIY tool allinone Next door plumbing experts couldn't find a 12mm hex for tap fittings!!!! Tool Station Weybridge to the rescue! And it's a red key too! Thanks
Date published: 2020-04-12
Rated 5 out of 5 by from Sturdy tool that does the job! I bought this about a week ago after discovering that my new radiators had a 12mm hex socket and my tool was an imperial half inch that wouldn't fit. This was a nice tight fit in my radiator tails and, being a round bar, felt really sturdy when making the final tightening. The radiator vent key is a bonus doesn't suffer from the weaknesses of traditional vent keys. Overall, a great tool to add to your plumbing toolbag!
Date published: 2019-10-22
Rated 3 out of 5 by from Not sure... Bought this but it didn’t fit the 12mm radiator connector I was trying to undo. I don’t know if it’s the fault of the spanner or the radiator, so can’t complain really.
Date published: 2017-12-25
Rated 3 out of 5 by from Plumbing can be infuriating! What constantly amazes me is the lack of standarisation in the UK. Having bought a set of radiator valves confident in the knowledge that I have a half inch radiator hex key in my tool kit, I discover that the radiator valves which I purchased happen to require a 12mm hex key... Why is it that Toolstation treats these two variants as alien to one another? If you search for 'radiator hex key', you get this one - which fails to even mention that it is 'half inch' size: https://www.toolstation.com/shop/Hand+Tools/d10/Plumbers+Tools/sd210/Radiator+Hex+Key/p26053 On the other hand, you specifically have to go hunting for a 'radiator spanner' to discover the 12mm version - which I am 'reviewing' - and which pops up on an entirely different page. Bonkers!
Date published: 2017-11-18
Rated 5 out of 5 by from Great fit This is a 12mm radiator key and was perfect for the job of fitting the radiator tails to my new designer radiators. Nowadays, many valves and radiator tails from continental Europe are 12mm whereas English ones are 1/2" (12.7mm). You need the right sized key for the tail you are tightening! So I ignored the misleading review of this product - Toolstation also stock a 1/2" key if this is what you need.
Date published: 2017-07-27
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