how-do-you-use-a-box-spanner-basin-tap-wrench

How do you use a tap backnut box spanner?

Shop for Basin Tap Wrenches

Box spanner basin wrench Tap Back Nut Spanner 27 x 32mm, Tommy Bar Faithfull Tap backnut spanner is a double ended box spanner used for the removal or fitting of brass and nylon tap back nuts on basins. Supplied complete with a Tommy bar. Spanner Sizes: 27mm and 32mm.

Step 1 – Select right size tool

To select the correct box spanner for your needs you will need to know the size of the nut you want to turn.

Nearly all backnuts are 1/2 or 3/4 inch. Their AF (across flats) measurements are typically  27mm and 32mm.

Water supply pipes, bathroom fitting sink basin plumbing tap hot and cold water copper pipes flexible tube sink bathroom adjustable basin wrench tap back nuts removing a faucet

Step 2 – Position yourself comfortably

Once you have a box spanner of the correct size, place yourself in a comfortable position where you have good visibility of your work area (this may be difficult as tap backnuts tend to be in awkward places).

323F Tap Back Nut Box Spanner Monument tap back nut box spanner which is double ended, for quick assembly of tap back nuts on basins. Size: 27 and 32mm. Technical Specs Size: 27 and 32mm.

Step 3 – Align box spanner with tap tail

Align the box spanner basin wrench with the tap tail and move it upwards over the tap tail (you will have to have removed the supply pipes to do this).

323F Tap Back Nut Box Spanner Monument tap back nut box spanner which is double ended, for quick assembly of tap back nuts on basins. Size: 27 and 32mm. Technical Specs Size: 27 and 32mm.

Step 4 – Fit box spanner over nut

Move the box spanner upwards until its hexagonal socket fits over the tap backnut.

323F Tap Back Nut Box Spanner Monument tap back nut box spanner which is double ended, for quick assembly of tap back nuts on basins. Size: 27 and 32mm. Technical Specs Size: 27 and 32mm.

Step 5 – Rotate tool

Rotate the box spanner. Turn it clockwise to tighten and anti-clockwise to loosen.

You can increase your leverage by inserting the T-bar handle through the holes in the end of the box spanner and using that to turn the tool.

Warning: if your backnut is made from brass then be careful that you don’t overtighten, as this could seriously damage your basin. If the backnut is plastic then overtightening could result in splitting your backnut.

How to use a box spanner basin tap wrench bath spanner tap spanner wrench wonkee donkee tools DIY guide plumbing tools bathroom maintenance

Step 6 – Remove nut

Once you have sufficiently loosened the nut, you should be able to remove it easily by hand.

Removing stubborn nuts with a Stiffnuts box spanner

Stiffnuts box spanner basin wrench remove stubborn nuts and fittings wonkee donkee tool DIY guide

Step 1 – Select required attachment

There are multiple socket attachments for this tool, so you will need to know what kind of nut you are working with before you assemble the attachments.

Stiffnuts box spanner basin wrench remove stubborn nuts and fittings wonkee donkee tool DIY guide

Step 2 – Slot in required attachment

Once you have the right socket attachment, slot it into the orange end of the body of the tool.

Stiffnuts box spanner basin wrench remove stubborn nuts and fittings wonkee donkee tool DIY guide

Step 3 – Screw tool onto tap tail

Slide the tool up over the tap tail and screw it on to the threads until it reaches just below the nut you want to remove.

Stiffnuts box spanner basin wrench remove stubborn nuts and fittings wonkee donkee tool DIY guide

Step 4 – Engage nut by hand

Lift up the socket attachment part of the tool and engage it with the nut, hand tightening until secure.

Stiffnuts box spanner basin wrench remove stubborn nuts and fittings wonkee donkee tool DIY guide

Step 5 – Disengage and rotate tool 180°

The socket attachment part of the tool will now stay on the tap tail and will be engaged with the nut.

You can now disengage the body of the tool and rotate it 180° so that the yellow end is now facing upwards.

Stiffnuts box spanner basin wrench remove stubborn nuts and fittings wonkee donkee tool DIY guide

Step 6 – Engage opposite end with socket attachment

Engage the yellow end of the tool with the socket attachment that is secured to the nut.

Stiffnuts box spanner basin wrench remove stubborn nuts and fittings wonkee donkee tool DIY guide

Step 7 – Rotate tool anti-clockwise

Rotate the body of the tool anti-clockwise. This action will engage the socket attachment and unscrew the nut from the tap tail.

You can do this either by hand or with an appropriately-sized T-bar handle (not supplied).

Stiffnuts box spanner basin wrench remove stubborn nuts and fittings wonkee donkee tool DIY guide

Step 8 – Rotate with drill (optional)

You can rotate this tool via a power drill to make life that little bit easier.

This is optional, but if you do, make sure your drill is on its lowest torque setting.

drill adaptor attachment stiffnuts socket wrench basin tap spanner wrench plumber tools wonkee donee tools DIY guide If you want to rotate your tool with a drill then you will need the drill attachment accessory called the “drill adaptor”.