Bow compass YATO YT-72108 — steel, 300 mm, black/grey

The YATO YT-72108 bow compass is a steel instrument with a maximum span of 300 mm, designed for precise marking of circles and transferring measurements on workpieces and drawing surfaces. Its single-piece construction and black/grey finish provide a practical tool for controlled scribing in metalworking, woodworking, technical drawing and general workshop measurement tasks. The compass features a rigid steel frame and adjustable hinge for consistent radius settings within its 300 mm range.

Advantages

The steel construction ensures durability and resistance to bending during repetitive use, while the bow-style body gives fine control for accurate marking. The 300 mm maximum span covers a wide range of circle sizes without the need for additional extensions. The black and grey finish reduces glare and highlights adjustment points, and the single-piece supply simplifies selection and replacement in workshop inventories.

Suitable for

• Marking and scribing circles on metal and wood
• Transferring measurements and radii in layout and fabrication work
• Technical drawing and template creation
• Workshop general measurement and layout tasks

Key specifications

• Material: steel frame for rigidity and wear resistance
• Maximum span (radius capability): 300 mm
• Finish: black and grey surface treatment
• Design: bow-style compass with adjustable hinge for precise radius setting
• Supply: single-piece unit

How to use

To mark a circle, place the pointed leg at the desired centre point and adjust the opposite leg to the required radius using the hinge. Tighten any adjustment mechanism to secure the radius before scribing. Hold the compass vertically and rotate it smoothly around the centre point to create a consistent mark on the workpiece or drawing surface. For transferring measurements, set the compass to the measured distance and move it between points, keeping the hinge locked to maintain accuracy.

Usage recommendations

Use on a stable work surface and apply consistent pressure while scribing to avoid slips. Inspect the points before use and sharpen or replace the scribing tip if it becomes blunt. Store the compass in a dry place to prevent corrosion and check hinge tightness periodically to maintain accuracy.