Material: Crafted from durable Tool steel, ensuring longevity and resistance to wear. Maintenance: Easy to clean due to its rust-proof and scratch-proof properties, maintaining its appearance and functionality over time. Tip Strength: The professional compass features a high-strength tip that resists deformation, ensuring consistent performance. Point Precision: The finely ground point prevents accidental slipping, enabling precise and accurate measurements. Adjustment: Utilizes an adjustment knob switch to control the grip length of the pen, accommodating various circle sizes as needed. Circle Diameter: Capable of adjusting circles up to 24 inches in diameter, providing versatility for different woodworking and drafting tasks. Lockable Wing: Features a lockable wing that securely holds adjustments in place; simply loosen to adjust and tighten to secure.