Irwin 49914 Power Drill Auger Bit, 7/8 in Dia, 7-1/2 in OAL, Solid Center Flute, 1-Flute, 5/16 in Dia Shank 48-11-1862 Optimized cutting geometry provides longer

Optimized cutting geometry provides longer bit life

compact and well balanced body easily reaches tight spots

Manufactured from extremely lightweight and durable nylon

Hypoid gears have greater surface contact so more power is transferred over a wider surface

Irwin 49914 Power Drill Auger Bit, 7/8 in Dia, 7-1/2 in OAL, Solid Center Flute, 1-Flute, 5/16 in Dia Shank 48-11-1862 Optimized cutting geometry provides longerSolid center design provides extra rigidity while boring Wide lands keep the bit straight as it bores through the hole Single spur cutting edge scribes the circumference of the hole for a smoother finish Coarse screw point provides fast boring in hard and softwoods Full length heat treated bit guards against bending in heavy duty applications and strengthens the twist where the greatest strain occurs The flutes are ground behind the lands to funnel