ATT0023 - SK40-ER20-100 Tool Holder Chuck - 5-piece set

The ATT0023 5-piece SK40-ER20-100 collet chuck set is designed for maximum precision and stability when machining on milling machines and CNC machining centers. Compliant with DIN 69871, this set ensures reliable performance for milling and drilling applications.
Made of 20CrMnTi alloy steel, the spindles offer high wear resistance and durability. Balancing to the G2.5 standard allows operation up to 25,000 rpm, minimizing vibration and improving machining quality.
A concentricity tolerance of 0.003 mm ensures high precision, ideal for high-quality machining. With an overall length of 168.4 mm, a shaft length of 80.9 mm, and a clamping nut diameter of 34 mm, these chucks accommodate tools with diameters ranging from 1 to 13 mm, ensuring great versatility.

✔ Perfect for milling machines and CNC machining centers
✔ High precision with concentricity of 0.003 mm
✔ Balanced G2.5 for speeds up to 25,000 rpm
✔ 20CrMnTi steel construction for strength and durability

Technical specifications

Model ATT0023
Type Set of 5 collet chucks
DIN 69871 standard
Format SK40-ER20-100
Material: 20CrMnTi alloy steel
G2.5 balancing up to 25,000 rpm
Concentricity 0.003 mm
Total length 168.4 mm
Shaft length 80.9 mm
Clamping ring diameter 34 mm
Supported tool range 1 - 13 mm