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Test Tube Brush

RoundLock Stock: We apologise that we are out of stock on all but Keyed-Alike RoundLocks. We expect more to be available around 13-14th July. Protector 16mm and 19mm Chains: Certain lengths of these chains are out of stock, pending final stages on a new batch of each gauge. We are pushing to get these back ASAP and are expecting availability around 10th/13th July. Corona Virus: We have been working throughout the Corona Virus outbreak, as normally as we've been able. We have good stock levels on most other products and are normally despatching promptly. Shipping and Squire Custom Keyed-Alike lock orders can be Delayed. Please see our News page for more details.

Test Tube Brush

Test Tube Brush

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Test tube brush recommended for cleaning drilled holes in concrete, brickwork and blockwork when fitting our ground anchors. This can help to improve the strength of the bond when using resin fixings, and likewise when using shield anchors (expanding bolts).

Suitable primarily for hole diameter 12mm, and (with additional push/pull strokes), for 16mm.


  • Drill the hole and use the flexible tube to blow the majority of the dust out of the holes, as described in the instructions and with eye protection.
  • Then, push the test tube brush into the hole until it reaches the bottom, pull it out, and repeat twice more.
  • Then use the flexible tube to blow dust clear, as before.
  • Repeat again with the test tube brush and with the tube until no significant amount of dust is being withdrawn.

Tip: You may find it is easier to withdraw the brush by bending the wire handle at its mid-point, or by poking a screwdriver through the 'eye' at the top of the handle. Take care not to pinch your fingers!

Beware: We provide these items to help customers using our products. We are not able to advise on compatibility and any potential advantages/disadvantages or usage issues concerning products provided by any other manufacturers.

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Price (inc VAT): £1.50
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