Collet ER20 with 3.175mm – 1/8” diameter for holding tools with a shank diameter of 3mm. Compatible with all types of CNC spindles, tool holders and chucks.
Outer diameter: 21 mm
Length: 31.5 mm
The Collet ER20 with 3.175mm – 1/8” diameter is made of HSS (High Speed Steel) for maximum durability.
Extra hardened. Chrome plated.