Spyder 19021 Mach-Blue 1/4-in 9-Step Drill Bit (1/4-in to 3/4-in) Subcategory:Drilling & Driving & Boring, Driving, & Boring Grit : 240

Grit : 240

Wide range of wire brushes available

Pad Size (round) : 4"

000 RPM’s

Shank Type:Round

Spyder 19021 Mach-Blue 1/4-in 9-Step Drill Bit (1/4-in to 3/4-in) Subcategory:Drilling & Driving & Boring, Driving, & Boring Grit : 240Proprietary Mach Blue Armor Plating is a super hard surface plating that retains sharper cutting edges, and reduces heat build up and cutting friction resulting in faster cuts and exceptionally long drill life. Impact rated 1 4 speed hex won't slip in conventional 3 jaw chucks and ideal for use in quick change impacting power tools. Optimized 135 self centering split point cutting geometry won't walk or wander even on pre hardened or curved surfaces.