1、This lathe tool holder is made from quality hardened carbon steel material, which is sturdy and durable. 2、You can adjust the height of cutting edge easily and accurately, providing more convenient and efficiency. 3、This lathe tool holder has gone through accurate ground and hardening, turning and facing tools can be locked together. 4、V groove can hold round shank boring bars and tools as well as square tool bits to machine end face, external, cutting, boring etc. 5、This lathe tool holder is perfect and practical tool for manual and CNC lathe, the carbon steel ensures long service life. 1 x Lathe Tool Holder Item Type: Lathe Tool HolderMaterial: Carbon SteelModel: 250-201TPurpose: V goove can hold round shank boring bars and tools as well as square tool bits to machine end face, external, cutting, boring etc.Product Size: Approx. 90 x 45 x 30mm / 3.54 x 1.77 x 1.18in (Not Including Top Screw)Slot Width: 3/4inGroove Depth: 1/2inDistance from Bottom to Top of Groove: 1-1/8in