Introducing the L Square Ruler Bubble Leveler by POWERTEC. These handy tools were designed to help improve your workflow by providing you with highly accurate measurements and proper alignments - eliminating much of the guesswork involved with common woodworking and other high precision task. Commonly referred to as framing squares or carpenter's squares, this upgraded version also possesses built-in bubble levelers for proper placement and level measurements. Each Ruler Features - Standard and Metric Systems of measurements. An L-shaped design to provide you with true square and straight dimensions. Easy-to-read fluorescent colored bubble levels for optimal flatness. Lightweight design that's easy to maneuver and works perfectly in tight spaces. Durable aluminum construction with an anodized finish for corrosion and rust resistance. Introducing the Setup Blocks Height Gauge by POWERTEC, the Setup Block Set is a must-have for anyone who wants to get accurate measurements and save time on setup. Our precision-machined aluminum alloy setup block set is an excellent tool for woodworkers of all experience levels, the blocks are made of aluminum alloy and are machined to within 0.00 1 in. accuracy, making them the perfect tool for setting fence, cutter heights, table saws, bench drills and other woodworking tools.