Specification Brand : ZJchao BulletPoint1 : [ Material] High speed steel material provides high hardness, good strength, toughness, and stable quality. BulletPoint2 : [sturdy and ] Miniature twist drill is made of high speed steel, offering durability, sharpness, low drilling resistance, and smooth chip removal. BulletPoint3 : [Ideal for Crafts] for jewelry diy crafts, watchmaking, carpentry, home furnishing, wood or plastic products, electronic parts repair, etc. BulletPoint4 : [Versatile Usage] Micro twist drill bits can be used with various manual and power tools for a better experience. BulletPoint5 : [Multiple Specifications] Straight shank mini drill bits can be used in various tool fixing systems, with 9 different specifications. ItemName : Micro Twist Drill Bits Set HSS Straight Shank Mini Jewelry Watch PCB Crafts ItemPackageDimensions_Height : 2 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 11 centimeters ItemTypeKeyword : pin-vises Manufacturer : ZJchao ModelNumber : ZJchao0nz9pgeikm NumberOfItems : 1 PartNumber : ZJchao0nz9pgeikm ProductDescription : [ Material] High speed steel material provides high hardness, good strength, toughness, and stable quality. [sturdy and ] Miniature twist drill is made of high speed steel, offering durability, sharpness, low drilling resistance, and smooth chip removal. [Ideal for Crafts] for jewelry diy crafts, watchmaking, carpentry, home furnishing, wood or plastic products, electronic parts repair, etc. [Versatile Usage] Micro twist drill bits can be used with various manual and power tools for a better experience. [Multiple Specifications] Straight shank mini drill bits can be used in various tool fixing systems, with 9 different specifications.