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Unit of Measure

Series

 N/A SFC

Material

 N/A High Speed Steel

Heat Treat

 N/A Per Drill Manufacturer´s Standard

Finish

 N/A Strippable Plastic Coat to Protect Cutting Edges (Tube Packaging Optional)

Size

 N/A 164

A - Dia

 N/A 0.1339 - 0.1346 in

B - Dia

 N/A 0.2280 - 0.2290 in

C - Dia ±.010

 N/A 0.535 in

D ±.40

 N/A 3.875 in

E - Dia (Ref.)

 N/A 0.2270-0.2295 in

Notes

 N/A
  • <2> Conical point optional.
  • Made from standard straight shank jobbers or screw machine twist drills.
  • Dimensions and tolerances not shown are per ANSI B94.11M.
  • Caution: Step drills are designed for thru hole drilling. When used to drill a blind hole, it may be necessary to grind the drill to suit the depth required.