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  • Products
      • All Products
      • Abrasives
      • Carbide Burs
      • Carbide End Mills
      • Center Drills
      • Chamfer Mills
      • Closeout Tools
      • Cobalt End Mills
      • Countersinks
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  • New for 2026
Countersinks - Carbide Four Flute Countersinks
Features:
  • 60°, 82°, 90°, and 100° included angle options
  • 4 flute design for smooth cutting action and improved surface finish
  • Solid carbide head brazed onto a steel shank
  • Precision manufactured in the USA


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    Tip: Enter a quantity for each item, then scroll down and add to cart
    Item Size Shank Diameter Included Angle Angle per Side Flutes Overall Length Coating In Stock Price Quantity
    5777585
    0.2500" (1/4) 0.2500" (1/4) 60 30 4 2.0000" (2) UNCOATED 23 $21.64
    5777596
    0.3750" (3/8) 0.2500" (1/4) 60 30 4 2.6250" (2-5/8) UNCOATED 29 $31.44
    5777607
    0.2500" (1/4) 0.2500" (1/4) 82 41 4 2.0000" (2) UNCOATED 15 $21.64
    5777618
    0.3750" (3/8) 0.2500" (1/4) 82 41 4 2.6250" (2-5/8) UNCOATED 15 $31.44
    5777629
    0.5000" (1/2) 0.2500" (1/4) 82 41 4 2.6250" (2-5/8) UNCOATED 15 $41.58
    5777640
    0.6250" (5/8) 0.3750" (3/8) 82 41 4 2.7500" (2-3/4) UNCOATED 16 $64.98
    5777651
    0.7500" (3/4) 0.3750" (3/8) 82 41 4 2.7500" (2-3/4) UNCOATED 15 $82.39
    5777662
    1.0000" (1) 0.5000" (1/2) 82 41 4 3.0000" (3) UNCOATED 15 $141.67
    5777673
    0.1250" (1/8) 0.1250" (1/8) 90 45 4 1.5000" (1-1/2) UNCOATED 15 $15.02
    5777684
    0.1875 (3/16) 0.1875" (3/16) 90 45 4 2.0000" (2) UNCOATED 15 $19.94
    5777695
    0.2500" (1/4) 0.2500" (1/4) 90 45 4 2.0000" (2) UNCOATED 15 $21.64
    5777706
    0.3750" (3/8) 0.2500" (1/4) 90 45 4 2.6250" (2-5/8) UNCOATED 24 $31.44
    5777717
    0.5000" (1/2) 0.2500" (1/4) 90 45 4 2.6250" (2-5/8) UNCOATED 15 $41.58
    5777728
    0.6250" (5/8) 0.3750" (3/8) 90 45 4 2.7500" (2-3/4) UNCOATED 23 $64.98
    5777739
    0.7500" (3/4) 0.3750" (3/8) 90 45 4 2.7500" (2-3/4) UNCOATED 15 $82.39
    5777750
    1.0000" (1) 0.5000" (1/2) 90 45 4 3.0000" (3) UNCOATED 15 $141.67
    5777761
    0.2500" (1/4) 0.2500" (1/4) 100 50 4 2.0000" (2) UNCOATED 15 $21.64
    5777772
    0.3750" (3/8) 0.2500" (1/4) 100 50 4 2.6250" (2-5/8) UNCOATED 15 $31.44




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    2700 Bellevue Ave
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