#58 x 12" HSS Aircraft Extension Drill Bit Hex Shank Black & Gold These drills have a 5-1/2"

These drills have a 5-1/2" drilling depth and are sold individually

They work well in piercing through inconel

while the high red hardness allows for drilling speeds up to 30% faster than standard M2 HSS

Sold in packs of 12

and inconel with ease

#58 x 12" HSS Aircraft Extension Drill Bit Hex Shank Black & Gold These drills have a 5-1/2"Description A versatile drill for production, maintenance, or portable drilling jobs. Ideal for extended reach. 118 split point tip for fast, accurate drilling. Works on many materials. Black oxide surface resists abrasion and improves chip flow. The round shank fits various tool holding systems. Sold in packs of 12