Description: The collets are meant to fit in Dremels. Unscrew the Dremel head, and replace the collet sleeve. This will allow you to use burrs with different thickness shafts.

Made In: China

Head Size: 
0.5mm: 0.3-0.6mm
0.8mm: 0.6-0.9mm
1.0mm: 0.8-1.1mm
1.2mm: 1.0-1.3mm
1.5mm: 1.3-1.6mm
1.8mm: 1.6-1.9mm
2.0mm: 1.7-2.1mm
2.4mm: 2.1-2.5mm
3.0mm: 2.6-3.0mm
3.2mm: 2.9-3.2mm

Case Size: 10cm x 7cm x 1cm
Package Weight: 20.5g

Material: Brass

Quantity: Pack of 10 pieces (all different sizes)