How to Use a T-Bevel

Creating an angle when woodworking can be simple if you use a T-bevel, also known as a sliding bevel gauge.

Measured Angle

You can use the T-bevel to measure your own angle or use it for transferring angles. The T-bevel mimics a square, with the short end adjustable. It is commonly used to measure angles for a dovetail joint.

Unlock the T-bevel wing nut or thumbscrew.

Move the T-bevel around until you have reached the angle desired.

Use a protractor as a guide to set a measured angle. Set the measured angle on the protractor. Place the protractor inside the T-bevel and set it to match.

Lock the T-bevel into place with the wing nut or the thumbscrew.

Lay the T-bevel on the wood where the angle is going to be made and mark the wood for your project.

Transferred Angle

Unlock the T-bevel wing nut or thumbscrew.

Lay the T-bevel flat on the angle you wish to mimic.

Adjust the bevel to match the angle.

Lock the T-bevel into place with the wing nut or thumbscrew.

Lay the T-bevel on the wood where you would like to transfer the angle.

Mark the wood for your project.

Things You Will Need

  • T-bevel or sliding bevel gauge
  • Angle to measure
  • Protractor
  • Angle to transfer

Tip

  • A thumbscrew T-bevel can be laid flat on the wood. The wing nut T-bevel is restricted from laying flat on the wood in some angles.