Professional Carpenter Tool Combination with Square Angle Ruler Protractor

For a 90 degree Angle between the ruler and the handle, after the upper plane of handle and the ruler are parallel, tighten the nut.
When you want to move your handle, first loosen the nut and pull it down, let the handle loosen with the ruler.

Material: Stainless Steel
Marking for CM and MM

12 Inches 300mm Adjustable Engineer Combination Square Ruler Set Kit.
Suitable for measuring, marking out,laying out etc.
This measuring ruler can be used for Outside Tri-Square, Inside Tri-Square, Mitre Square, Spirit Level, 45 Degree Level, Plumb Level, Depth Gauge, Height Gauge and Marking Gauge.
With Spirit Level and Scriber.
Fully Adjustable, Includes markings for cm and mm.