3N1™ Quick-Change

31 products available - Order by EDP Number

Request a Quote Find a Distributor Countersinks Catalog (PDF)

About 3N1™ Quick-Change

Quick-change versions of the 3N1 drill point countersink. The head threads onto a standard FM shank (4", 6" or 8" overall length) and has a positive lock up on a 60° seat angle with a threaded lock, so a dull head can be changed while the shank stays in place. All 3N1-QC heads are factory resharpenable.

Combination drill-countersink-chamfer in one tool. HSS and Carbide.

Ordering Tip

All tools are ordered by their EDP Number (Electronic Data Processing). Find your tool in the table below and use the EDP number when placing orders with your distributor.

3N1 Quick-Change Countersink

Quick Facts

  • 31 products in this group
  • Made in Saginaw, Michigan
  • Precision ground to exacting tolerances
  • Available through authorized distributors
  • Resharpenable for extended life
Download Full Catalog (PDF)

Available Products

All EDP numbers listed below. Request a quote for any EDP, or find a stocking distributor.

3N1-QC Heads

Body Dia. OAL Drill Point Thread Tool Name 60° EDP 82° EDP 90° EDP 100° EDP 120° EDP
3/8"1-5/32".141"1/4"-283N1-QC-3/80180001810018200183001840
7/16"1-5/32".188"1/4"-283N1-QC-7/160180101811018210183101841
1/2"1-5/32".219"1/4"-283N1-QC-1/20180201812018220183201842
5/8"1-5/32".250"1/4"-283N1-QC-5/80180301813018230183301843
3/4"1-13/16".313"3/8"-243N1-QC-3/40180401814018240183401844

FM-Series Shanks (for QC Heads)

Thread Size Shank Dia. Shank Dec. Overall Length Shoulder Dia. Shank Name EDP Number
1/4"-281/4".2504"7/16"FM-2 Shank34235
1/4"-281/2".5006"1/2"FM-2x6 Shank34239
1/4"-281/2".5008"1/2"FM-2x8 Shank34240
3/8"-241/4".2504"9/16"FM-3 Shank34236
3/8"-245/8".6256"5/8"FM-3x6 Shank34241
3/8"-245/8".6258"5/8"FM-3x8 Shank34242

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