Precision Crafted to meet the needs of the most demanding hobbyist. The 1/4" anodized aluminum handle has a permanently mounted self-centering steel chuck that accommodated drill from #52 (.0635) thru #80 (.0135) and non-slip knurled surface for positive grip. includes 6 assorted drills in a clear plastic tube with cap that slides inside handle for storage. 100% made in America.