Countersinks

Countersink cutter drill bits are designed to fit directly into manual, electric and cordless drill driver attachments and have hexagonal or round shanks. Countersink cutters are used to create a chamfer around the rim of a pilot hole enabling the head of a countersunk screw to sit flush. Countersink cutters can also be used to remove the burr left from a drilling or tapping operation.


Types of Countersink Cutters



  • Cross-Hole Countersink Cutter: These have a hole that goes through the side of the cone that provides the cutting edge. These countersink cutters are suitable for deburring and can also be used in soft materials such as wood or plastic to create a countersunk hole. The design of these countersink cutters means that they are free from mechanical vibration or 'chatter' and they also stay in the centre.

  • Fluted Countersink cutter: These have fluted blades that produce a heavy chamfer to create the correct seating for a countersunk-head screw. Countersink cutters are available with six different cutting angles but the most common are 82° and 90°. The number of flutes on the countersink cutter can also vary.

  • Single fluted: These have less chatter or mechanical vibration than multi-fluted and are ideal for use in small holes for general-purpose countersinking, chamfering and deburring. These are designed for machine use and light portable work when operating at higher speeds.

  • Three fluted: These are designed for a chatter-free performance and are used mainly in portable applications at slower speeds. The design of these countersinks gives them a good centring ability.

  • Four fluted: These have good radial relief

  • Five Fluted: These have a rugged design and the odd number of flutes minimises chatter.

  • Six fluted: These are ideal for producing fast shearing cuts.


These countersink cutter drill bits are made from HSS (High-Speed Steel) which can withstand high temperatures without losing its hardness.


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Beskrivning Pris Drill Bit Type Head Diameter Countersink Angle Number of Flutes Material Overall Length Number of Pieces Shank Diameter Shank Length
RS-artikelnummer 218-567
VarumärkeRS PRO
553,29 kr
Each
Enheter
Countersink Set 6.3 mm, 8.3 mm, 10.4 mm, 12.4 mm, 16.5 mm, 20.5 mm 90° 3 HSS - 6 - -
RS-artikelnummer 218-551
VarumärkeRS PRO
53,05 kr
Each
Enheter
Countersink 6mm 90° 3 HSS - 1 - -
RS-artikelnummer 562-533
VarumärkeRS PRO
98,38 kr
Each
Enheter
Countersink 10mm 90° 5 HSS 39 mm 1 6.35 mm 20.5mm
RS-artikelnummer 215-518
VarumärkeRS PRO
633,91 kr
Each
Enheter
Countersink Set 2 mm, 5 mm, 10 mm, 15 mm, 20 mm 90° - HSS - 4 - -
RS-artikelnummer 423-848
VarumärkeRS PRO
212,00 kr
Each
Enheter
Countersink 14mm 90° - HSS 48 mm 1 7.15 mm 20mm
RS-artikelnummer 562-634
VarumärkeRS PRO
110,60 kr
Each
Enheter
Countersink 6mm 90° 5 HSS 45 mm 1 5 mm 35mm
RS-artikelnummer 218-618
VarumärkeRS PRO
650,73 kr
Each
Enheter
Countersink Set 6 mm, 8 mm, 10 mm, 12 mm, 16 mm, 20 mm 90° 5 HSS - 6 - -
RS-artikelnummer 215-467
VarumärkeRS PRO
461,70 kr
Each
Enheter
Countersink Set 2 mm, 5 mm, 10 mm, 15 mm, 20 mm 90° - HSS - 4 - -
RS-artikelnummer 215-495
VarumärkeRS PRO
282,70 kr
Each
Enheter
Countersink 15mm 90° - HSS 65 mm 1 10 mm 37.5mm
RS-artikelnummer 218-602
VarumärkeRS PRO
104,75 kr
Each
Enheter
Countersink 8mm 90° 5 HSS - 1 - -
RS-artikelnummer 423-810
VarumärkeRS PRO
79,47 kr
Each
Enheter
Countersink 10.4mm 90° 3 HSS 34 mm 1 7.15 mm 21.5mm
RS-artikelnummer 218-573
VarumärkeRS PRO
248,45 kr
Each
Enheter
Countersink 20mm 90° 5 HSS - 1 - -
RS-artikelnummer 218-646
VarumärkeRS PRO
124,69 kr
Each
Enheter
Countersink 16mm 90° 3 HSS - 1 - -
RS-artikelnummer 423-816
VarumärkeRS PRO
92,95 kr
Each
Enheter
Countersink 12.4mm 90° 3 HSS 36 mm 1 7.15 mm 21.5mm
RS-artikelnummer 456-898
VarumärkeRS PRO
131,94 kr
Each
Enheter
Countersink 12mm - 3 HSS 120 mm 1 - -
RS-artikelnummer 218-624
VarumärkeRS PRO
213,46 kr
Each
Enheter
Countersink 25mm 90° 3 HSS - 1 - -
RS-artikelnummer 673-8717
VarumärkeRS PRO
131,17 kr
Each
Enheter
Countersink 16.5mm 90° 3 HSS 63 mm 1 10 mm 42mm
RS-artikelnummer 673-8704
VarumärkeRS PRO
73,10 kr
Each
Enheter
Countersink 10.4mm 90° 3 HSS 50 mm 1 6 mm 36mm
RS-artikelnummer 423-876
VarumärkeRS PRO
57,65 kr
Each
Enheter
Countersink 6.3mm 90° 3 HSS 31 mm 1 7.15 mm 21.5mm
RS-artikelnummer 218-652
VarumärkeRS PRO
81,67 kr
Each
Enheter
Countersink 12mm 90° 3 HSS - 1 - -
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