5 pieces Diamond Grinding Barrel 4x8mm

Grit #150, diameter:4x8mm, total length:55mm 2-1/4" , shank:2.3mm, weight 5g



Collet needed: 3/32" or adjustable

Use Water as a coolant. This extends the life and prevents melting of the diamond shards

Use with high speed craft type drills and flex shafts.