Description:5.9/6.3mm Mini Tips For Pneumatic Engraving Machine For Jewelry EngraverSpecifications:Product NameMini Tip Head Connector For Engraving Machine SizeA: 5.9mm B: 6.3mm (Option)MaterialMetalLength26mm/ 1.02"Quantity1 PcsFeatures:- Made of good quality material, durable and perfect fits you..