Its design features a 13mm (1/2”) hexagonal end and a 10mm (3/8″) side, perfectly suited for both installing and removing 13mm (1/2”) BSP radiator valve tails and vent plugs. For these you need a 13mm hex tool and the Britool E113925B 13mm Short Arm Hexagon Key is one such tool that is virtually the same physical size as the C3155 but is 13mm AF. DK Tools Limited is the company behind the Amtech brand and we began over 30 years ago as a small, family-run market stall in West London. So there I was, innocently doing a bit of plumbing, and before I knew it, I discovered quite to my surprise that my tail was stuck in the radiator! Crafted from heavy-duty zinc-plated high tensile steel, it ensures lasting durability and reliable performance.

The other, square, end is for for 3/8 inch (10 mm) square section radiator vent plugs (the plug which has a bleed screw in the middle), and blanking plugs with the same square recess. The Amtech Radiator Key is a durable and versatile tool essential for managing radiator valves and vent plugs. To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average.Finance is provided by PayPal Credit (a trading name of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH). Credit subject to status, UK residents only, Toolstation Ltd, acts as a broker and offers finance from a restricted range of finance providers, PayPal Credit is a trading name of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH.

Read more about the condition New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable). We are proud to have grown into one of the most successful British DIY and Home Improvement companies on the market, with our Amtech brand and product proposition being endorsed by The Telegraph Business Club. This amount includes seller specified domestic postage charges as well as applicable international postage, dispatch, and other fees.

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This place is the original Aladdin's cave - a huge range, everything you ever need for the house and home, with friendly and knowledgeable staff who can't do enough to help. Ok for light use - the square end snapped off when I tried to remove a well rusted air vent where the bleed screw was bust. Whether you're adjusting or maintaining your radiator system, this key provides the precision and sturdiness needed for the job. They have everything you could want in the DIY and home improvement line including knowledgeable advice.There is a round hole in the end of the square head that gives clearance for the air vent screw, so the plug can be removed without damaging the screw. This 1/2 inch allen key / hex spanner is used to install (or remove) the tails of union type radiator valves into a radiator. This key is normally made from high tensile steel and is usually galvanised or zinc-coated for protection against corrosion.

We have access to a wide range of fittings, products, equipment and technology solutions for plumbers and heating engineers - Public and Trade sales welcome.

Suitable for 3/8" and 10mm square section radiator vent plugs and bleed screws with 14mm internal hexagon.