Carbon steel adapter for engraving machines and chucks Material and build - High quality carbon steel for durability and long service life - Practical design for everyday workshop use Specifications - Hole diameters: 6 mm, 6.35 mm (1/4 in), and 8 mm - Designed to convert chucks for engraving machines - Compatible with router bits that have 6 mm, 6.35 mm (1/4 in), and 8 mm shanks Package contents - Contents: 1 piece or 3-piece set Key benefits - Enables use of different bit sizes without changing the chuck - Improves versatility for engraving and milling tasks - Durable construction supports repeated insertions and removals Use scenarios - Scenario 1: You work with various engraving bits and need a single adapter that accepts 6 mm, 1/4 in, and 8 mm shanks. - Scenario 2: Upgrading a chuck on a small engraving machine to accommodate multiple bit sizes for complex patterns. - Scenario 3: Regularly switching between detailed 6 mm and larger 8 mm engraving cuts, reducing downtime and tool changes.