1904-0450 Johnny Square Finish Square, Aluminum, 4-1/2-In.

The Johnson 1904-0450 Johnny Square Finish Square is a compact 4-1/2-inch layout tool designed for finish carpentry, saw blade setup, and precise marking in tight work spaces. CNC machined from extruded aluminum and finished with a glare-resistant EZ-Read anodizing process, this laser-etched square delivers durable performance on any jobsite and is backed by Johnson's best-in-class limited lifetime warranty. Its compact size makes it ideal for applications where standard squares cannot fit, while its professional-grade construction ensures accuracy and longevity.

Carpenters, contractors, and DIY builders rely on this finishing square for establishing angles, marking rip lines, and measuring lumber dimensions quickly and accurately. The continuous scribing notches and convenient board-width markers streamline layout work and reduce setup time on common framing and finishing tasks. The erasable note space on the back allows you to record measurements and details without permanent marks or residue.

Features and Benefits

• Compact Design: At 4-1/2 inches, this finish square is 35% more compact than standard squares, allowing access to tight spaces and corners where larger tools cannot reach.
• EZ-Read Anodizing: Glare-resistant EZ-Read anodizing and laser-etched graduations and numbers remain highly visible under bright workshop lights.
• CNC Machined Construction: Extruded aluminum construction with CNC machined edges is durable enough to withstand any jobsite abuse.
• Continuous Scribing Notches: Built-in notches at 1-1/2 inches and 3-1/2 inches simplify marking common lumber widths and ripping tasks without manual calculation.
• 2x4 Board Markers: Convenient markings for standard 2x4 lumber dimensions (1-1/2 inches and 3-1/2 inches) speed up layout work and reduce measurement time.
• Erasable Note Space: Dedicated area on the back allows you to write finish notes, dimensions, or reminders that can be easily erased without leaving residue.

Specifications

• Brand: Johnson
• Model: 1904-0450
• Length: 4-1/2 inches
• Material: Aluminum (extruded)
• Graduation: 1/8 inch
• Finish: Low-glare anodized coating
• Warranty: Limited lifetime warranty
• Dimensions: 6.25 x 3.25 x 0.75 inches