Rick:
As I feared, while the Pin Vice clamps and allows sufficient clearance at the grind wheel face. The back end of the Drill bit is not supported sufficiently to provide the required centricity for sharpening.
Essentially the drill bit requires total support in the same way the DBS-22 supports bits larger then 3mm.
So this means a clamp similar in nature to the DBS-22 drill bit clamp perhaps a simplified slip in sub assembly which will cradle the drill bit in its full length from 3t5 mm of the grinding wheel to the fullest length of the bit shank.
A Pin Vice or a collet only provides clamping and support at the forward end of the drill bit which becomes very apparent when you begin the sharpening process of the sub 3mm drill bits.
This is a bit disappointing however perhaps someone else will step forward with another suggestion to aid us all in the pursuit of Sub 3mm drill bit sharpening
Thanks for Listening
As I feared, while the Pin Vice clamps and allows sufficient clearance at the grind wheel face. The back end of the Drill bit is not supported sufficiently to provide the required centricity for sharpening.
Essentially the drill bit requires total support in the same way the DBS-22 supports bits larger then 3mm.
So this means a clamp similar in nature to the DBS-22 drill bit clamp perhaps a simplified slip in sub assembly which will cradle the drill bit in its full length from 3t5 mm of the grinding wheel to the fullest length of the bit shank.
A Pin Vice or a collet only provides clamping and support at the forward end of the drill bit which becomes very apparent when you begin the sharpening process of the sub 3mm drill bits.
This is a bit disappointing however perhaps someone else will step forward with another suggestion to aid us all in the pursuit of Sub 3mm drill bit sharpening
Thanks for Listening