This Little Sliding T-bevel Will Help You Mark Those Angles Accurately Every Time. It's On 4.25" Long, So It Will Handle Smaller Jobs For You, And Fit Easily Into Just About Any Toolbox. This Sliding Bevel Features Wing-nut Tension Control, And A Flat Handle For Easy Control And Placement. Great For Wood Construction, And Stone Masonry Work As Well.* Features Sliding Lever * Flat Handle * Wing-nut Tension Control * Only 4.5" Long * Professional Quality