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Countersinks

A countersink is a conical hole or the tool used to create that hole, typically for allowing a screw or bolt head to sit flush with the surface of material. Countersinks are used in various applications, including woodworking and metalworking, to achieve a clean, finished look for fasteners.

IMPORTANCE OF FORSTNER BITS

Countersink drill bits are vital for achieving high-quality finishes, enhancing joint strength, and ensuring safety in various woodworking and metalworking projects. Countersink drill bits are versatile tools that can be used in various applications, including furniture making, cabinetry, and metal fabrication, making them essential for both professionals and DIY enthusiasts. With the right countersink drill bit, users can achieve clean and accurate holes without the need for additional tools or complicated setups, streamlining the workflow in projects. Whether you're a professional woodworker or a DIY enthusiast, countersinks are a valuable addition to your toolkit.

BIT DESIGN

Countersink bits feature a unique design. Their conical shape, flute design, cutting edges, material construction, coatings, and shank compatibility all contribute to their effectiveness in creating flush-fitted fasteners in woodworking and metalworking projects.

APPLICATIONS

Countersink drill bits are widely used in various applications across woodworking, metalworking, and construction industries. Their primary function is to create conical holes that allow screws, bolts, and other fasteners to sit flush with the surface of the material, ensuring a clean and professional finish.

MATERIALS

Countersink drill bits are made from various materials, including high-speed steel (HSS), cobalt, and carbide.

High-Speed Steel (HSS): Commonly used for general-purpose drilling, HSS bits offer good durability and heat resistance.

Cobalt: These bits are designed for drilling harder materials and provide increased wear resistance.

Carbide: Known for their exceptional hardness, carbide bits are ideal for high-precision applications and can withstand extreme conditions.

Coatings: Many countersink drill bits feature specialized coatings, such as titanium or black oxide, which enhance their performance and longevity. These coatings reduce friction, improve chip removal, and protect against corrosion.

    • BOHRCRAFT BO-250 ALLROUND Cutting Oil is a high-performance cutting oil designed for a wide range of machining operations including drilling, countersinking, thread cutting, reaming, sawing, turning, and milling. Designed for a wide range of machining operations including drilling, countersinking, thread cutting, reaming, sawing, turning, and milling.

      sku: 96901500023

      BOHRCRAFT Cutting Oil | BO-250 ALLROUND Cutting OIL

      $14.97
    • The BOHRCRAFT 1706 Counterbore Bit is designed for precision counterboring, allowing screw or bolt heads to sit flush within a workpiece. Suitable for machining, woodworking, furniture making, and general assembly tasks for M3 boltsand screws.

      sku: 1706-M3

      BOHRCRAFT Counterbore | 1706 M3 HSS Straight Shank 180° Counterbore

      $15.38
    • The BOHRCRAFT 1706 Counterbore Bit is designed for precision counterboring, allowing screw or bolt heads to sit flush within a workpiece. Suitable for machining, woodworking, furniture making, and general assembly tasks

      sku: 1706-M4

      BOHRCRAFT Counterbore | 1706 M4 HSS Straight Shank 180° Counterbore

      $15.67
    • FAMAG Countersink Drill Bits | 3578 Scratch Free Rotating Depth Stop Set  with 3, 4, 5mm Drill FAMAG Countersink Drill Bits | 3578 Scratch Free Rotating Depth Stop Set  with 3, 4, 5mm Drill

      FAMAG Countersink Drill Bits | 3578 Scratch Free Rotating Depth Stop Set with 3, 4, 5mm Drill

      $132.91
    • The BOHRCRAFT 1733 Countersink is a professional-grade tool engineered for burr-free, smooth countersinking in demanding materials. Made from HSS-E cobalt (5% cobalt alloyed high-speed steel), it provides excellent heat resistance, wear resistance, and durability, even under heavy-duty use.

      sku: 1733

      BOHRCRAFT Countersinks | 1733 HSS-E Cobalt 5% BLUE+ Coated 90° UNEQUAL PITCH Countersink

      $31.65 - $96.47
    • Cross hole countersink drill HSS-G 2 - 5 mm Bohrcraft

      sku: 1720

      BOHRCRAFT Countersinks | 1720 HSS Cross-Hole Countersinks for Steel

      $16.40 - $174.63
    • The BOHRCRAFT 1705 HSS 1/4" Shank Countersinks are precision-engineered bits crafted from high-speed steel to ensure robust and long-lasting performance.

      sku: 1705

      BOHRCRAFT Countersinks | 1705 HSS Countersinks for Steel with 1/4" Shank

      $7.71 - $23.45
    • FAMAG Shell Countersinks | Supplier of 2101 90° Countersink - Ø 16mm  for 10mm Drill, Screw Head Recessing, Countersunk Head Screws, Screws and Fasteners, Trade Supplies and Carpentry FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm  with 10mm Drill for Screw Head Recessing, Countersunk Head Screws and Screws and Fasteners

      sku: 2101.100

      FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm for 10mm Drill

      $27.48
    • FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm  with 8mm Drill for Screw Head Recessing, Countersunk Head Screws to create a total tool solution for timber. FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm  with 8mm Drill for Screw Head Recessing, Countersunk Head Screws in Melbourne, Sydney and Brisbane.

      sku: 2101.080

      FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm for 8mm Drill

      $27.48
    • FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm  with 6mm Drill for Screw Head Recessing, Countersunk Head Screws to create a total tool solution for timber. FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm  with 6mm Drill for Screw Head Recessing, Countersunk Head Screws in Melbourne, Sydney and Brisbane.

      sku: 2101.060

      FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm for 6mm Drill

      $22.10
    • FAMAG Shell Countersink is designed for use with 10mm drill bits. Discover the FAMAG 2106 180° Shell Countersink for 10mm drill bits, available in Australia and New Zealand.

      sku: 2106.210

      FAMAG Shell Countersinks | 2106 180° Countersink - Ø 25mm for 10mm Drill

      $89.29
    • FAMAG Shell Countersink is designed for use with 11mm drill bits. Discover the FAMAG 2106 180° Shell Countersink for 11mm drill bits, available in Australia and New Zealand.

      sku: 2106.110

      FAMAG Shell Countersinks | 2106 180° Countersink - Ø 25mm for 11mm Drill

      $81.80
    • FAMAG Shell Countersink is designed for use with 8mm drill bits. Discover the FAMAG 2106 180° Shell Countersink for 8mm drill bits, available in Australia and New Zealand.

      sku: 2106.180

      FAMAG Shell Countersinks | 2106 180° Countersink - Ø 20mm for 8mm Drill

      $84.98
    • FAMAG Shell Countersinks 2106 180° Countersink - Ø 20mm  with 10mm Drill for Bolt Recessing, CLT Installation to create a total tool solution for timber. FAMAG Shell Countersinks 2106 180° Countersink - Ø 20mm  with 10mm Drill for Bolt Recessing, CLT Installation in Melbourne, Sydney and Brisbane.

      sku: 2106.100

      FAMAG Shell Countersinks | 2106 180° Countersink - Ø 20mm for 10mm Drill

      $74.20
    • FAMAG Shell Countersinks 2106 180° Countersink - Ø 16mm  with 6mm Drill for Deck Building, Bolt Recessing to create a total tool solution for timber. FAMAG Shell Countersinks 2106 180° Countersink - Ø 16mm  with 6mm Drill for Deck Building, Bolt Recessing and Counterboring

      sku: 2106.060

      FAMAG Shell Countersinks | 2106 180° Countersink - Ø 16mm for 6mm Drill

      $73.40
  • BOHRCRAFT BO-250 ALLROUND Cutting Oil is a high-performance cutting oil designed for a wide range of machining operations including drilling, countersinking, thread cutting, reaming, sawing, turning, and milling. Designed for a wide range of machining operations including drilling, countersinking, thread cutting, reaming, sawing, turning, and milling.

    BOHRCRAFT Cutting Oil | BO-250 ALLROUND Cutting OIL

    BOHRCRAFT BO-250 ALLROUND Cutting OIL  Cutting Oil for drilling, countersinking, thread cutting, reaming, sawing, turning and milling. Higher cutting speeds Longer tool life Very good surface quality Prevents build up edges Minimum quantity...
    $14.97
    Add to Cart
  • The BOHRCRAFT 1706 Counterbore Bit is designed for precision counterboring, allowing screw or bolt heads to sit flush within a workpiece. Suitable for machining, woodworking, furniture making, and general assembly tasks for M3 boltsand screws.

    BOHRCRAFT Counterbore | 1706 M3 HSS Straight Shank 180° Counterbore

    BOHRCRAFT Counterbore – 1706, M3, HSS, Straight Shank, 180° The BOHRCRAFT 1706 Counterbore Bit is engineered for precision counterboring, allowing M3 screws and bolt heads to sit flush within a workpiece. Manufactured from high-speed steel...
    $15.38
    Choose Options
  • The BOHRCRAFT 1706 Counterbore Bit is designed for precision counterboring, allowing screw or bolt heads to sit flush within a workpiece. Suitable for machining, woodworking, furniture making, and general assembly tasks

    BOHRCRAFT Counterbore | 1706 M4 HSS Straight Shank 180° Counterbore

    BOHRCRAFT Counterbore – 1706, M4, HSS, Straight Shank, 180° The BOHRCRAFT 1706 Counterbore Bit is engineered for precision counterboring, allowing M4 screws and bolt heads to sit flush within a workpiece. Manufactured from high-speed steel...
    $15.67
    Choose Options
  • FAMAG Countersink Drill Bits | 3578 Scratch Free Rotating Depth Stop Set  with 3, 4, 5mm Drill FAMAG Countersink Drill Bits | 3578 Scratch Free Rotating Depth Stop Set  with 3, 4, 5mm Drill

    FAMAG Countersink Drill Bits | 3578 Scratch Free Rotating Depth Stop Set with 3, 4, 5mm Drill

    The NEW drill bit countersink set for terrace construction The precise depth adjustment and 60° lowering angle give you a professional result with minimal effort. The uniform lowering depth, which is particularly important for terraces, is...
    $132.91
    Choose Options
  • The BOHRCRAFT 1733 Countersink is a professional-grade tool engineered for burr-free, smooth countersinking in demanding materials. Made from HSS-E cobalt (5% cobalt alloyed high-speed steel), it provides excellent heat resistance, wear resistance, and durability, even under heavy-duty use.

    BOHRCRAFT Countersinks | 1733 HSS-E Cobalt 5% BLUE+ Coated 90° UNEQUAL PITCH Countersink

    BOHRCRAFT Countersinks – 1733 HSS-E Cobalt 5%, BLUE+ Coated, 90° Unequal Pitch The BOHRCRAFT 1733 Countersink is a professional-grade tool engineered for burr-free, smooth countersinking in demanding materials. Made from HSS-E cobalt (5% cobalt...
    $31.65 - $96.47
    Choose Options
  • Cross hole countersink drill HSS-G 2 - 5 mm Bohrcraft

    BOHRCRAFT Countersinks | 1720 HSS Cross-Hole Countersinks for Steel

    BOHRCRAFT 1720 HSS Cross-Hole Countersinks for Steel The BOHRCRAFT 1720 HSS Cross-Hole Countersinks are high-performance tools designed for precision deburring, chamfering, and countersinking across a variety of materials. Constructed from high-speed...
    $16.40 - $174.63
    Choose Options
  • The BOHRCRAFT 1705 HSS 1/4" Shank Countersinks are precision-engineered bits crafted from high-speed steel to ensure robust and long-lasting performance.

    BOHRCRAFT Countersinks | 1705 HSS Countersinks for Steel with 1/4" Shank

    BOHRCRAFT 1705 – Countersink Bit, 90°, HSS, 1/4" Hex Shank The BOHRCRAFT 1705 Countersink Bit is designed for clean, precise deburring and countersinking of holes at a 90° angle. Manufactured from high-speed steel (HSS), it delivers long...
    $7.71 - $23.45
    Choose Options
  • FAMAG Shell Countersinks | Supplier of 2101 90° Countersink - Ø 16mm  for 10mm Drill, Screw Head Recessing, Countersunk Head Screws, Screws and Fasteners, Trade Supplies and Carpentry FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm  with 10mm Drill for Screw Head Recessing, Countersunk Head Screws and Screws and Fasteners

    FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm for 10mm Drill

    FAMAG 2101 90° Shell Countersink - Ø 16mm for 10mm Drill Countersink with two edges and point angle 90°, to be clipped on drill bits. Drilling and countersinking in one single operation. For fitting on drill bits. Suitable for soft wood,...
    $27.48
    Choose Options
  • FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm  with 8mm Drill for Screw Head Recessing, Countersunk Head Screws to create a total tool solution for timber. FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm  with 8mm Drill for Screw Head Recessing, Countersunk Head Screws in Melbourne, Sydney and Brisbane.

    FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm for 8mm Drill

    FAMAG 2101 90° Shell Countersink - Ø 16mm for 8mm Drill Countersink with two edges and point angle 90°, to be clipped on drill bits. Drilling and countersinking in one single operation. For fitting on drill bits. Suitable for soft wood,...
    $27.48
    Choose Options
  • FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm  with 6mm Drill for Screw Head Recessing, Countersunk Head Screws to create a total tool solution for timber. FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm  with 6mm Drill for Screw Head Recessing, Countersunk Head Screws in Melbourne, Sydney and Brisbane.

    FAMAG Shell Countersinks | 2101 90° Countersink - Ø 16mm for 6mm Drill

    FAMAG 2101 90° Shell Countersink - Ø 16mm for 6mm Drill Countersink with two edges and point angle 90°, to be clipped on drill bits. Drilling and countersinking in one single operation. For fitting on drill bits. Suitable for soft wood,...
    $22.10
    Choose Options
  • FAMAG Shell Countersink is designed for use with 10mm drill bits. Discover the FAMAG 2106 180° Shell Countersink for 10mm drill bits, available in Australia and New Zealand.

    FAMAG Shell Countersinks | 2106 180° Countersink - Ø 25mm for 10mm Drill

    FAMAG 2106 180° Shell Countersink - Ø 25mm for 10mm Drill Countersink for straight countersinking 180° with 2 main cutting edges and 2 spurs; to be mounted on drill bits. Drilling and countersinking of washers and nuts in one single...
    $89.29
    Choose Options
  • FAMAG Shell Countersink is designed for use with 11mm drill bits. Discover the FAMAG 2106 180° Shell Countersink for 11mm drill bits, available in Australia and New Zealand.

    FAMAG Shell Countersinks | 2106 180° Countersink - Ø 25mm for 11mm Drill

    FAMAG 2106 180° Shell Countersink - Ø 25mm for 11mm Drill Countersink for straight countersinking 180° with 2 main cutting edges and 2 spurs; to be mounted on drill bits. Drilling and countersinking of washers and nuts in one single...
    $81.80
    Choose Options
  • FAMAG Shell Countersink is designed for use with 8mm drill bits. Discover the FAMAG 2106 180° Shell Countersink for 8mm drill bits, available in Australia and New Zealand.

    FAMAG Shell Countersinks | 2106 180° Countersink - Ø 20mm for 8mm Drill

    FAMAG 2106 180° Shell Countersink - Ø 20mm for 8mm Drill Countersink for straight countersinking 180° with 2 main cutting edges and 2 spurs; to be mounted on drill bits. Drilling and countersinking of washers and nuts in one single...
    $84.98
    Choose Options
  • FAMAG Shell Countersinks 2106 180° Countersink - Ø 20mm  with 10mm Drill for Bolt Recessing, CLT Installation to create a total tool solution for timber. FAMAG Shell Countersinks 2106 180° Countersink - Ø 20mm  with 10mm Drill for Bolt Recessing, CLT Installation in Melbourne, Sydney and Brisbane.

    FAMAG Shell Countersinks | 2106 180° Countersink - Ø 20mm for 10mm Drill

    FAMAG 2106 180° Shell Countersink - Ø 20mm for 10mm Drill Countersink for straight countersinking 180° with 2 main cutting edges and 2 spurs; to be mounted on drill bits. Drilling and countersinking of washers and nuts in one single...
    $74.20
    Choose Options
  • FAMAG Shell Countersinks 2106 180° Countersink - Ø 16mm  with 6mm Drill for Deck Building, Bolt Recessing to create a total tool solution for timber. FAMAG Shell Countersinks 2106 180° Countersink - Ø 16mm  with 6mm Drill for Deck Building, Bolt Recessing and Counterboring

    FAMAG Shell Countersinks | 2106 180° Countersink - Ø 16mm for 6mm Drill

    FAMAG 2106 180° Shell Countersink - Ø 16mm for 6mm Drill Countersink for straight countersinking 180° with 2 main cutting edges and 2 spurs; to be mounted on drill bits. Drilling and countersinking of washers and nuts in one single...
    $73.40
    Choose Options