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All Products  ➞ Bordo ➞ Drills ➞ Counterbores ➞ 180° Single

8 x 4.3mm 180 Degree Counterbore for M4 Screws

Part Number:3870-4.0
Brand:Bordo
Barcode:9326518007333
Pack Qty:1
Diameter D (mm) :8
Diameter d (mm) :4.3
OAL (mm):71
Shank (mm):8

About this item:
  • 8 x 4.3mm 180 Degree Counterbore for M4 Screws
  • Bright finish HSS-Co5 (Cobalt) for extreme tool life.
  • Use to enlarge the top of an existing hole to create a cylindrical-shaped opening with a flat bottom that acts as a seat for the head of a screw or wood plug.
  • Ideal for use with standard cap screws or socket head screws.