Diamond Coated Ball burr 1.8mm

Diameter:1.8mm,Grit240, total length 1-5/8", shank:2.3mm weight:13g

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.