Irwin 3016128 Jobber Drill Bit, 7/16 in Dia, 5-1/2 in OAL, Spiral Flute, 1-Flute, 7/16 in Dia Shank, Straight Shank Socket Universal Joints double cutting spurs scribe the

double cutting spurs scribe the outside of the hole reducing breakout

Smooth and fast sanding

cardboard and more

Ideal for school experiments and it makes a great gift

Irwin 3016128 Jobber Drill Bit, 7/16 in Dia, 5-1/2 in OAL, Spiral Flute, 1-Flute, 7/16 in Dia Shank, Straight Shank Socket Universal Joints double cutting spurs scribe theHSS with M 35, 5% cobalt, for higher heat and abrasion resistance; heavy duty web construction for strength and durability. Split point begins drilling immediately, minimizing bit walk when used in applications such as metal drilling, including heavy duty abrasive alloy metal drilling on hardened steel (heat treated). Unit: EA UPC: 024721089434 Model Number: 3016128