21PC Fractional COBALT Jobber Drill Bit Set

21PC Fractional COBALT Jobber Drill Bit Set

  • Part# 58-4021
  • Industrial Quality for professionals & distributors
  • Comes with a heavy duty MADE IN USA steel index box/case for long lasting & convenient storage. Withstands drops and protects drills from rust, oil, and harsh weather
  • Contains 21 fractional COBALT jobber drill bits with sizes 1/16″…1/4″ by the 64ths increment and 9/32″…1/2″ by the 32nds increment
  • Includes M35 COBALT steel and 135° split point fractional COBALT jobber drill bits
  • COBALT finish makes these bit stronger and lasts longer than a black&gold twist drill bit. Wear, corrosion, and abrasion resistance is made better
  • Precision grounded from solid one piece design for exact specifications to ensure accurate holes
  • Spiral flute feature efficiently removes chips, plug, debris, and heat when drilling
  • Straight shank with 3 Flats for a tight, firm grip with drill chucks on sizes 3/16″ & up. Round straight shank on sizes 11/64″ & under.