Radiator Assembly Toolkit ATK2 | Castrads
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Radiator Assembly Toolkit ATK2


The ultimate cast iron radiator assembly toolkit. Comprises scratchless socket, assembly toolheads for either 1-¼” or 1-½” steel joining nipples and two lengths of extension to assemble oversize cast iron radiators of various sizes.

Designed only by Castrads. Made only for Castrads.

In stock

Additional information


Cast Iron Radiator Assembly Made Easy


The only toolkit you’ll ever need for assembling Castrads cast iron radiators on site. Aluminium flightcase contains non-marking 42mm socket, two lengths of extension, assembly toolheads for both 1¼” IPS and 1½” IPS threaded joining nipples and 3′ long sliding T-bar (¾” drive). 


Also included are a depth stop to make finding the join easier and a Utility Bleed Key, perfect for bleeding hydronic radiators, closing our lockshield valves and cracking open a cold one. 


The Professional’s Toolkit


At 36″ long, 5″ deep and 5″ tall, this large aluminium toolbox weighs a little over 26lbs. Components are held securely in high density foam. Instructions are included in the box. Metal parts are made of high quality heat-treated steel (EN24T).


Usage Guide


Download the Assembly Toolkit Quick Start Guide.


Download the Cast Iron Radiator Assembly Guide.



Toolkit Contents



# Part name Qty Description
1 CR-AT-101-A 1
1½” assembly tool head
2 CR-AT-001-B 1
1¼” assembly tool head
3 CR-AT-102-A 1 800mm extension bar
4 CR-AT-102-B 1 400mm extension bar
6 CR-AT-004 1
Sliding T-bar – ¾” drive
9 CR-AT-005-C 1 Scratchless Socket – 42mm
13 CR-AT-DS 1 Depth stop
14 M8 Bolt 3 M8 bolt
15 #6 ALLEN KEY 1
6mm Allen key for M8 bolt
16 BLK-AD-04 1
Utility Bleed Key


Weight 26.5 kg
Dimensions 25273 × 6223 × 2159 mm