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Top-Read Vial + Continuous Rail
Top-read vial reads level from above when the bottom edge is wedged into the work. Continuous rail runs uninterrupted end-to-end so scribe lines pull clean.
.029° Vial Accuracy + Acrylic Windows
Vials read to .029° / .0005 in. per inch behind acrylic windows locked in by screws. Position holds after the corner drop.
V-Groove + Ruled Edge
V-grooved bottom edge reads true on round stock. Ruled edge measures in centimeters and inches for layout and cut work.
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SKU TRL240
Top Read Levels
Available at trusted retailers nationwide
Direct pricing coming soon. See retailer availability below.
Swanson Top Read Levels add a top-read vial to the aluminum I-Beam frame so the buyer reads level from above when the bottom edge is wedged into the work. Vials read to .029 / .0005 in. per inch accuracy and sit behind acrylic windows locked in by screws so they hold position after the drop. The continuous rail runs uninterrupted end-to-end for clean scribe lines, and a ruled edge measures in centimeters and inches.
Size
24"
TRL240
Pick up locally or order online from Amazon, Home Depot, Lowe’s, Walmart, Ace, Menards, or Acme Tools.
Family-owned
Same factory since 1925
Trusted retailers
Available nationwide
Pro-trusted
32,000+ verified reviews
In stock at retailers
Why pros reach for it
01
Top-read vial reads level from above when the bottom edge is wedged into the work. Continuous rail runs uninterrupted end-to-end so scribe lines pull clean.
02
Vials read to .029° / .0005 in. per inch behind acrylic windows locked in by screws. Position holds after the corner drop.
03
V-grooved bottom edge reads true on round stock. Ruled edge measures in centimeters and inches for layout and cut work.
A closer look

Two-foot reach with a top-read vial. Read level from above when the bottom edge is wedged into the work.

Ruled edge measures in centimeters and inches. Layout and cut work without a separate tape.

Cleared milled rail with the top-read vial centered. Read at a glance from any angle above the work.

Acrylic vial windows locked in place by machined screws. Vials hold position after the corner drop.

Continuous rail runs uninterrupted end-to-end so scribe lines pull clean without a frame break to step over.