Specification Brand : Centaur BulletPoint1 : 3/16" Size BulletPoint2 : Premium Quality R8 Collets for Machines with bridge port style R8 spindles BulletPoint3 : Precision Manufacturing, made from high grade steel, hardened and ground with 100% quality inspection BulletPoint4 : Premium Quality R8 Collets for Machines with bridge port style R8 spindles BulletPoint5 : 【Economical And Reliable】With excellent price and high cost performance, the product is a good choice for you. Capacity : 0.5 inches CompatibleDevices : Milling Machine ExternallyAssignedProductIdentifier : 9182430938342 GpsrSafetyAttestation : 1 ItemName : Centaur R806 R8 Collet, 3/16" Size, BT40 3/4 ItemPackageDimensions_Height : 1 inches ItemPackageDimensions_Length : 2.2 inches ItemPackageDimensions_Width : 1 inches ItemPackageQuantity : 1 ItemTypeKeyword : workholding-collets LockType : Manual Manufacturer : Centaur Precision Tools, Inc. Material : Alloy Steel ModelNumber : R806 NumberOfItems : 1 PartNumber : R806 PowerSourceType : PowerSource ProductDescription : Feature: 1. The collect chuck tool holder is featured with quality assurance, long service life. 2. Made of 40cr alloy steel, the product can withstand high pressure and explosion. 3. With excellent price and high cost performance, the product is a good choice for you. 4. You can use this collect chuck tool holder on various kinds of CNC milling machines. 5. The tool is characterized by high accuracy and excellent performance.