Specification Brand : Vermont Gage BulletPoint : For holding 5/8" shank end mills. CompatibleMaterial : Alloy Steel ItemName : MT3-5/8" End Mill Holder, with Drawbar End ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : end-mill-holders Manufacturer : Meda - Superior Import Material : Alloy Steel PartNumber : 56644209756 ProductDescription : Made of alloy forged steel for long, durable service life. * Hardened to RC 56-60 and ground to ensure maximum accuracy. * Drawbar Threads: MT3 3/8"-16* Holders are for single end mills. ProductSiteLaunchDate : 2012-08-06T18:50:46.788Z UnitCount : 1 UnspscCode : 27112803