HSS Step Drill Bit
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HSS Step Drill Bit (851 series)

  • Industrial grade step drill bit for professionals
  • Perfect for drilling or enlarging multiple holes with one single drill bit to save time and money
  • Double flute ensures efficient chip removal, “cool” running, and extended bit life
  • 135° split point prevents walking/wobbling, provides self centering, and eliminates the need for a pilot hole
  • Step Drill cuts through sheet metal, plastic, copper, wood, aluminum, and carbon fiber

 

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. www.P65Warnings.ca.gov

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Drill and enlarge multiple, different sized holes in sheet metal, PVC, plastic, wood and etc. with one single drill bit. Heat-treated high speed steel material makes the bit cut faster and last longer. Chamfered steps allows the user to drill holes step by step to eliminate debris burr. 135° split point for instant starts

NO. OF STEPS SMALLEST DIA. LARGEST DIA. SHANK PART NUMBER UPC NUMBER 722170-
13 1/8″ 1/2″ 1/4″ Quick Change 851.0500A 85131
6 3/16″ 1/2″ 1/4″ Quick Change 851.0500B 85132
9 1/4″ 3/4″ 1/4″ Quick Change 851.0750QC 85143
3 3/8″ 3/4″ 1/4″ Quick Change 851.0750B 85137
12 3/16″ 7/8″ 1/4″ Quick Change 851.0875QC 85134
8 5/16″ 1″ 3/8″ HEX 851.1000 85141
12 7/16″ 1-1/8″ 3/8″ HEX 851.1125 85135
2 7/8″ 1-1/8″ 3/8″ HEX 851.1125B 85138
11 3/4″ 1-3/8″ 3/8″ HEX 851.1375 85136
5 7/8″ 1-3/8″ 3/8″ HEX 851.1375B 85139
11 1/4″ 1-1/2″ 3/8″ HEX 851.1500 85140
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