Diamond coated drill bits 10 pcs -2.5 x 10mm

Diameter:2.5mm, coated length:10mm or 3/8", total length 2-3/8", shank:2.3mm, weight 20g




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.


great for sea glass and sea shells