3pcs ER20 3-12mm Spring Collet Set 1/8-1/2 Inch Chuck Collet for CNC Milling Lathe Tool

Description: 3pcs ER20?3-12mm?Spring Collet Set 1/8 Inch to 1/2 Inch Chuck Collet for CNC Milling Lathe Tool ? These are precision collets for professionals and hobbyists demanding ease of operation and high quality work results. ER collet is the most widely used clamping system in the world used for a variety of machining applications including boring, milling, reaming, tapping and grinding. Collet must be assembled into the clamping nut before inserting into the chuck. ? Specification: Type: ER20 Material: Spring steel Total height: 31.5mm Outer diameter(Max): 21mm Clamping Diameter: 3mm(1/8) / 6mm(1/4) / 13mm(1/2) Quantity: 3pcs Suitable For: Boring, milling, drilling, tapping, engraving, CNC, spindle machines, and other processing. ? Features: - Product selection of materials, high-quality spring steel, long lasting. - Clamping force, wide clamping range, high accuracy - Wide range of applications, for example, boring, milling, drilling, tapping, engraving, CNC, and other processing. ? How to use: 1. Insert the tip into the pressure cap, gently turn the retainer until the pressure cap eccentric retainer portion recessed groove along the direction of the arrow evenly push hard retainer, you can mount the internal pressure cap. 2. The pressure cap with retainer mounted together on a spindle or chuck body, the cylindrical tool shank after wiping loaded clamping hole, use a wrench to tighten the pressure cap even force until the date before the tool folder in prison use. (Note: not in the tool and avoid tightening pressure cap installed to avoid damage to the retainer) 3. ATC with a wrench loosen pressure cap out of the chuck and the tool, remove the tool, retainer direction of the arrow push hard to quit, and then need to put on retainer to the other aperture. ? Package Included: 1x Set (3pcs) ER20 Spring Collet ? More Details: