This listing is for a Brand New  3 Ring with Copper Lozenge


 

Bit size as Listing Heading
Bit Diameter 16mm
Large Centre ring -  5.5 & 6.0  =  75mm dia, 

                                     4.5 & 5.0 = 56mm dia
Small rings -              5.5 & 6.0  =  30mm dia  

                                     4.5 & 5.0 = 25mm dia
Overall Shank length  - 5.5 & 6.0 = 154mm under bit 110mm

                                            4.5 & 5.0 = 122mm under bit  78mm
Cheeks Stainless Steel
Copper Lozenge 25mm long   12.5 x 16.5mm


All measurements are approximate

 

The lozenge link contours the tongue  and forms true contact.  The copper lozenge  assists with salivation.