Now Shopping by

By Category:

  • Shop All Products
  • Drilling & Holemaking X
  • Countersinks, Chamfer Mills & Back Chamfers X
  • Countersinks & Sets X
  • Countersinks X
  • Shank Diameter (Inch):

  • 1/4" X
  • Head Diameter (Inch):

  • 5/16" X
  • Shank Diameter (Inch)

    Included Angle

      Countersink Finish/Coating

        Countersink Material

          Head Diameter (Inch)

          Head Diameter (mm)

            Number of Flutes

              Compare Products

              You have no items to compare.

              Order Templates

              You have no items in your Order Templates.
              Sort By
              23 Items
              Top
              5/16" 60º 6-Flute H.S.S. Chatterless Countersink product photo
              5/16" 60º 6-Flute H.S.S. Chatterless Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              Download catalog page
              Product ID: 120702 View Product Details
              Call for Availability
              Price: $ 21.76

              Qty


              5/16" 82º 6-Flute H.S.S. Chatterless Countersink product photo
              5/16" 82º 6-Flute H.S.S. Chatterless Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              Download catalog page
              Product ID: 120715 View Product Details
              Call for Availability
              Price: $ 21.76

              Qty


              5/16" 90º 6-Flute H.S.S. Chatterless Countersink product photo
              5/16" 90º 6-Flute H.S.S. Chatterless Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              Download catalog page
              Product ID: 120728 View Product Details
              Call for Availability
              Price: $ 21.76

              Qty


              5/16" Diameter 60º Single Flute H.S.S. Countersink product photo
              5/16" Diameter 60º Single Flute H.S.S. Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              • Overall Length (Inch) : 2"
              • Shank Length (Inch) : 1"
              Download catalog page
              Product ID: 120741 View Product Details
              Call for Availability
              Price: $ 15.61

              Qty


              5/16" Diameter 82º Single Flute H.S.S. Countersink product photo
              5/16" Diameter 82º Single Flute H.S.S. Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              • Overall Length (Inch) : 2"
              • Shank Length (Inch) : 1"
              Download catalog page
              Product ID: 120755 View Product Details
              In stock
              Price: $ 15.86

              Qty


              5/16" Diameter 90º Single Flute H.S.S. Countersink product photo
              5/16" Diameter 90º Single Flute H.S.S. Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              • Overall Length (Inch) : 2"
              • Shank Length (Inch) : 1"
              Download catalog page
              Product ID: 120769 View Product Details
              Call for Availability
              Price: $ 15.61

              Qty


              5/16" Diameter 100º Single Flute H.S.S. Countersink product photo
              5/16" Diameter 100º Single Flute H.S.S. Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              • Overall Length (Inch) : 2"
              • Shank Length (Inch) : 1"
              Download catalog page
              Product ID: 120783 View Product Details
              Call for Availability
              Price: $ 11.78

              Qty


              5/16" 60º 6-Flute H.S.S. Countersink product photo
              5/16" 60º 6-Flute H.S.S. Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              • Model Number : HS6-5/16-60
              Download catalog page
              Product ID: 121206 View Product Details
              Call for Availability
              Price: $ 16.94

              Qty


              5/16" 82º 6-Flute H.S.S. Countersink product photo
              5/16" 82º 6-Flute H.S.S. Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              • Model Number : HS6-5/16-82
              Download catalog page
              Product ID: 121236 View Product Details
              Call for Availability
              Price: $ 16.94

              Qty


              5/16" 90º 6-Flute H.S.S. Countersink product photo
              5/16" 90º 6-Flute H.S.S. Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              • Model Number : HS6-5/16-90
              Download catalog page
              Product ID: 121266 View Product Details
              Call for Availability
              Price: $ 16.94

              Qty


              5/16" 100º 6-Flute H.S.S. Countersink product photo
              5/16" 100º 6-Flute H.S.S. Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              • Model Number : HS6-5/16-100
              Download catalog page
              Product ID: 121267 View Product Details
              In stock
              Price: $ 18.55

              Qty


              5/16" 110º 6-Flute H.S.S. Countersink product photo
              5/16" 110º 6-Flute H.S.S. Countersink
              • Brand: STM
              • End Type : Single
              • Shank Type : Straight
              • Cutting Direction : Right Hand
              • Model Number : HS6-5/16-110
              Download catalog page
              Product ID: 121298 View Product Details
              In stock
              Price: $ 16.94

              Qty


              You added 5/16" 110º 6-Flute H.S.S. Countersink to your shopping cart.

              View cart & checkout