Busch Fig 4205S 2 Groove Short Carbide Twist Drill on 3/32" Shanks .70mm-1.00mm - Kit of 4 Engraving & Stonesetting Sturdy construction suited for a

Sturdy construction suited for a lifetime of use on non-ferrous metals

Add some polishing compound and you are ready to go

decimal inches

Combines thermal and electrical conductivity testing in one instrument

Busch Fig 4205S 2 Groove Short Carbide Twist Drill on 3/32" Shanks .70mm-1.00mm - Kit of 4 Engraving & Stonesetting Sturdy construction suited for aRecommended for Pav Work on Hard Metals These Busch Fig 4205S short carbide twist drills are engineered for one precise application: drilling accurate holes in hard metals for pav diamond setting. The short length is intentional pav holes are relatively shallow, and longer drills are prone to breaking under torsional stress. The 2 groove design actively expels material from the hole during drilling, extending drill life and maintaining accuracy.