Specification Brand : Mumusuki BulletPoint1 : [High-strength High-carbon Steel] Made of high‑strength carbon steel, suitable for high-pressure working environments. BulletPoint2 : [Portable and Convenient] Small in size, easy to carry and store, allowing for convenient and efficient use. BulletPoint3 : [ Replacement] Ingeniously designed and well-crafted, providing high clamping reliability and replacement for old tools. BulletPoint4 : [Strict Quality Control] Rigorous quality control and assurance ensure a high safety factor, providing peace of mind during use. BulletPoint5 : [Secure and Efficient Clamping] A set of 4pcs clamps, ensuring secure and clamping with the same specifications. ItemName : 4Pcs Quick Changing Boring Quick Changing Boring Tool, Quick Changing Tool Post Tool 250‑101 with High Clamping Reliability Ideal for CNC Tool Fixture ItemPackageDimensions_Height : 8 centimeters ItemPackageDimensions_Length : 13 centimeters ItemPackageDimensions_Width : 8 centimeters ItemTypeKeyword : boring-bars Manufacturer : Mumusuki ModelName : Mumusukidmxgi890ka ModelNumber : Mumusukidmxgi890ka NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Mumusukidmxgi890ka ProductDescription : 1. A set of 4pcs clamps and the same specification clamping is more secure. 2. Made of high‑strength high‑carbon steel, suitable for high‑pressure working environment. 3. Ingenious designed and great workmanship, with high clamping reliability, can replacement for the old one. 4. Small size, easy to carry and store, convenient to use and with good performance. 5. Strict quality control and quality assurance, high safety factor, can be used with peace of mind.