How to insert and remove a blade in an adjustable frame

How you adjust the frame will vary depending on the make and model of your hacksaw. One method is shown below:

Step 1 – Loosen wingnut

Remove the blade by turning the wingnut on the side of the frame in an anti-clockwise direction.

This pushes forward a little metal bar on the frame and allows you to unhook the blade from the metal pins.

Step 2 – Loosen screw

The frame is held in place by a screw on the top of the hacksaw’s handle.

On the top bar of the frame are two holes, one positioned near the handle, and another slightly further down.

Use a screwdriver to loosen the screw until you can move the frame back and forth freely.

Step 3 – Adjust frame

Once the screw is loosened, you can move the frame in or out of the handle, depending on whether you want to shorten or lengthen it.

To use a 300mm blade in the saw, slide the frame out of the handle, until the screw is aligned with the second hole.

Step 4 – Tighten screw

Once the screw is aligned with the hole you want, tighten the screw to stop the frame sliding.

Step 5 – Insert blade and tighten wingnut

You can now insert the blade and tighten it by turning the wing nut in a clockwise direction.

When installing a hacksaw blade, ensure the teeth are on the outside of the frame, and are facing away from the handle. This is to ensure the hacksaw cuts on the push stroke