CNC machined for consistently high quality
Drilling times for a range of split point and Delta Point drills consistently showed that Delta Point bits were twice as fast in mild steel
Bordo Engineer's Quick Reference Pocket Book
The right hand spiral forces the swarf out of the hole and prevents the chips from clogging at the bottom of the hole or in the flutes
The thread profile of UNF is the same as for metric threads and is described in the JIS B0206 standard
Saber HSS TiN Coated Straight Flute Step Drill Set - Metric CNC machined for consistently highSaber HSS TiN Coated Straight Flute Step Drill Set Metric Saber step drills are ideal for electrical contractors, sheetmetal workers and auto mechanics. Step drills are designed for drilling repetitive holes in steel, stainless steel, copper, brass, aluminium, plastic, plexiglas, laminates and many other thin materials. Manufactured from premium quality high speed steel with double fluted ground cutting edges for long service life. No pilot hole