Diamond coated drill bits 10 pcs - 0.9 x 5mm

Diameter:0.9mm, coated length:5mm, total length: 1-5/8", shank:2.3mm, weight approx 13g



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.

Great for Jewelry Stone ~ Clasp holes