Bits Collar (100pcs)

  Milling bits collar is used for Carvera's auto tool changer system. The machine will come with 30 free 1/8-inch (3.175mm) ones. You can buy 3mm/4mm/6mm/6.35mm ones for different shaft milling bits.

Source: https://www.makera.com/products/bits-collar

Bits Collar (100pcs)
TL;DR:   Milling bits collar is used for Carvera's auto tool changer system. The machine will come with 30 free 1/8-inch (3.175mm) ones. You can buy 3mm/4mm/6mm/6.35mm ones for different shaft milling bits.
VariantPriceAvailability
3mm13.90 USDIn Stock
4mm13.90 USDIn Stock
6mm13.90 USDIn Stock
1/4 inch (6.35mm)13.90 USDIn Stock
1/8 inch (3.175mm)13.90 USDIn Stock