Fretz R-2 Rounded Tapered Raising Stake Jump and Split Rings This is not a collet

This is not a collet itself — it is a precision adaptor that fits inside a standard 1/8" collet and reduces the accepted shank size to 3/32"

and 5mm micro mushroom stakes — covering a graduated range ideal for forming small domes

see the matching pyramid variant: OTEC Blue Plastic Pyramid 10 mm – Medium

Onglette #1

Half-round upper jaw: 6 mm diameter × 20 mm long

Fretz R-2 Rounded Tapered Raising Stake Jump and Split Rings This is not a colletThe Fretz R 2 Rounded Tapered Raising Stake is a precision miniature forming stake crafted from hardened stainless steel with a fully polished surface. Designed for detailed raising and forming work, this stake's rounded, tapered profile gives metalsmiths and jewelers the control needed for shaping small scale hollow forms, curved surfaces, and dimensional metalwork. The fully polished finish helps prevent surface marring during use. Features