Machifit 14pcs ER20 Spring Collet Set 1/8-1/2 Inch Chuck Collet for CNC Milling Lathe Tool

Description: 1/8 9/64 11/64 5/32 3/16 7/32 15/65 9/32 5/16 11/32 3/8 13/32 7/16 1/2 Spring Collets Set For CNC Engraving Milling Lathe Tool ? Specification: Model: ER20 Material: Spring Steel Precision: <0.015 Gripping Range: 1/8, 9/64, 11/64, 5/32, 3/16, 7/32, 15/65, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 1/2 Upper Diameter: 28 mm Bottom Diameter: 25 mm Height: 34 mm T.I.R.: 0.0003 or 5um.? ? Suitable For: Boring, milling, drilling, tapping, engraving, CNC, spindle machines, and other processing Ground roughness is Ra0.4 Microns, plus overall fine polish. Quantity: 14pcs/Set ? Features: 1. Durable and practical. 2. Special angled slots increase rigidity. 3. Protects tool holder from contaminants. 4. Better overall balance of tool holder assembly. 5. Use with any standard ER collet chucks for coolant-thru tool applications. ? Package Included: 14 x ER20 Collets ? More Details