Features 1、100% brand new and high quality 2、This pin vise chuck is adopted of brass material, processed by electroplating, beautiful and durable in use 3、Double ended pin vise design, 2 chucks, holding sizes from 0. 5 mm to 3.2 mm 4、Suitable for PCB, handicraft, jewelry, watch making etc., not suitable for steel, iron stone, stone and other hard objects 5、This product contains a double ended pin vise chuck, and 10 pcs different sizes twist drill bit, convenient for your diy project Specification Features: 100% brand new and high quality This pin vise chuck is adopted of brass material, processed by electroplating, beautiful and durable in use Double ended pin vise design, 2 chucks, holding size from 0. 5 mm to 3.2 mm Suitable for PCB, handicraft, jewelry, watch making etc., not suitable for steel, iron stone, stone and other hard objects. This product contains a double ended pin vise chuck, and 10 pcs different sizes twist drill bit, convenient for your diy project Specifications: Pin vise material: brass(electroplated) Twist drill material: HSS Pin vise length: 10.3cm /4.06inch Holding size: 0. 5 ~3.2mm Drill bit size: 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2mm Weight: 29g Package included: 1 x Double ended pin vise 10 x Twist Drill Bit Package List