PET-U 29Pcs R8 Collet Set 1/32 inch - 1 inch Mill Collets Set Steel Mill Chuck Holder Fit for Mill Machine

29Pcs R8 Collet Set 1/32 inch - 1 inch Mill Collets Set Steel Mill Chuck Holder Fit for Mill Machine Specification: Size: 1/32 inch - 1 inch Threaded internally: 7/16 inch - 20 Material: steel Features: 1. Mill chuck holder kit is made of steel which has good rigidity more durability and long service life. 2. Mill chuck holder hole grinding smooth surface small resistance. 3. R8 collet spring collet set after quenching and grinding high hardness high precision small runout tolerance. 4. Mill collets set clamping force strong versatility. Various models meet your needs. Package Includes: 29 x R8 collet spring collet set