These are the QC (stands for Quick Change) graver or tool holders that hold the GRS pre-cut QC gravers and any other tools or bits that you shape to fit. Tools or gravers are held in place by 2 hex nut.
Available in the following diameters: 0.8mm, 1.8mm, 2.5mm, 3.00mm, and 3.45mm
Sold by the piece.
