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Unit of Measure

Series

 N/A RCDC

Material Type

 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 21

A - Dia

 N/A 0.2003-0.2010 in

B - Dia

 N/A 0.3270-0.3280 in

C ±.0050

 N/A 0.437 in

D ±.2500

 N/A 4.375 in

N/A

  • <2> Conical point optional.
  • Made from standard straight shank jobbers or screw machine twist drills.
  • <6> Configuration applicable only for part number RCDC72-875 thru RCDC124-1789.
  • 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.