Specification Brand : LAHDYFHOE BulletPoint1 : ☞ Model: BT30-ER16/BT30-ER20/BT30-ER25/BT30-ER32 / BT40-ER16/BT40-ER25/BT40-ER32 BulletPoint2 : ☞ US Standard High Precision holder, for ER16/ER20/ER25/ ER32 elastic collet BulletPoint3 : ☞ Hardened by quenching, Sturdiness and Durability: It is made of good materials, and the quenching process on the surface increases the hardness of the object. Not easy to deform even used long time, durable, accurate and stable. BulletPoint4 : ☞ Exquisite craftsmanship: Exquisite production craftsmanship, selected 40CrMnTi steel. Fine workmanship, Checked by multiple quality inspections BulletPoint5 : ☞ Well polished: Smooth Inner hole, polished to shiny. ExternallyAssignedProductIdentifier : 4021169679407 ExternallyAssignedProductIdentifier1 : 0747992312703 ExternallyAssignedProductIdentifier2 : 747992312703 ItemName : GBJ BT30- ER16-70L/2.75" Milling Holder for ER16 Collet Dynamic Balance Milling Shank Holder Extension Rod Face Mill Arbor High Precision Milling Chuck Holder (BT30-ER16-70L/2.75") ItemPackageDimensions_Height : 1.378 inches ItemPackageDimensions_Length : 5.118 inches ItemPackageDimensions_Width : 1.378 inches ItemPackageQuantity : 1 ItemTypeKeyword : face-mill-holders Manufacturer : LAHDYFHOE Material : Steel ModelNumber : WMTSR123044 NumberOfItems : 1 PartNumber : LAHDYFHOE ProductSiteLaunchDate : 2022-02-14T20:09:34.961Z Style : BT30-ER16-70L/2.75" UnitCount : 1 UnspscCode : 27112800