This high-quality tool holder is designed for HSK63F spindles and features an ER25 collet chuck with a collet capacity of 1 to 16 mm. The unit has a speed rating of 25,000 rpm and a balance grade of G2.5, ensuring optimal performance with minimal vibration.
Nut Specs: 42 mm slotted nut diameter, E-style or hook spanner wrench designed for ER25 nuts required. This is not a mini-nut.
Tool Holder Specs: 42.3 mm shank diameter, 32 mm open wrench required
"A" Length = 100 mm length. This is the general length from the tool holder surface that makes contact with the shaft, to the end of the collet, held in the nut. This measurement is also referred to as the "L" length by other manufacturers.
The extended length in the tool holder provides added strength and rigidity. This allows further projection of the tool with less vibration and run-out.