Diamond Coated Ball Burr 1mm

Diameter:1mm, Grit:240, total length:42 1-5/8", shank:2.3mm or 3/32 Weight13g



Used for starting your hole for drilling. This prevents skipping on entry as well as precise hole location.




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.

Sea Glass estimated life 6 to 9 thin pieces.

For preventing skipping & precise hole location. Recommended use with diamond drill bits for clasp hole drilling