Specifications: Made of high-quality carbon steel material, it is wear-resistant and easy to use. Processed by heat treatment and precise grinding, this collet chuck is durable for extended use. It is widely used in milling, drilling, engraving, CNC, spindle machines, and other clamping applications. Item Name: ER32 Collet Material: Carbon Steel Accuracy: 0.05 Model: ER32 Product Specifications: 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm Features: Durable, wear-resistant, collet chuck Size: 4cm x 3.3cm x 3.3cm / 1.57" x 1.30" x 1.30" (Approx.) Notes: Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Slight dimensional differences may occur due to manual measurement. Package Includes: 1 x ER32 Collet