10-piece set: 3mm/4mm/5mm/6mm/8mm/10mm/12mm/18mm/32mm/50mm.
15-piece set: 6mm/8mm/10mm/12mm/14mm/16mm/18mm/20mm/22mm/25mm/26mm/28mm/30mm/40mm/50mm.
Production Process: plating
Seiko fine and special wear-resistant, sharp processing use, there is no crushing edge, fast, sharp, wear-resistant.
10/15 pcs * Diamond Drill.
with a special enhanced coagulation treatment from electroplating sand suction hole neat
smooth, no broken edges, etc.is the efficient construction, installation hole of choice.
This section openings optimum glass openings, tiles can be opened
The product is installed on a professional drill or electric drill,
bench drill. Rpm 800-1000 rpm or so,
you must add water cooling holes during operation.
apply to job openings fast glass, plastic sheeting, wood and other products.