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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Nombre de résultats par page
Description Prix Drill Bit Type Head Diameter Countersink Angle Number of Flutes Material Overall Length Number of Pieces Shank Diameter Shank Length
N° de stock RS 218-567
MarqueRS PRO
53,51 €
Each
Unité
Countersink Set 6.3 mm, 8.3 mm, 10.4 mm, 12.4 mm, 16.5 mm, 20.5 mm 90° 3 HSS - 6 - -
N° de stock RS 673-8708
MarqueRS PRO
8,62 €
Each
Unité
Countersink 12.4mm 90° 3 HSS 56 mm 1 8 mm 41mm
N° de stock RS 456-898
MarqueRS PRO
12,76 €
Each
Unité
Countersink 12mm - 3 HSS 120 mm 1 - -
N° de stock RS 215-467
MarqueRS PRO
44,65 €
Each
Unité
Countersink Set 2 mm, 5 mm, 10 mm, 15 mm, 20 mm 90° - HSS - 4 - -
N° de stock RS 423-838
MarqueRS PRO
17,91 €
Each
Unité
Countersink 15.3mm 90° 5 HSS 32 mm 1 7.15 mm 21.5mm
N° de stock RS 248-5576
MarqueRS PRO
70,38 €
Each
Unité
Countersink Set 6.3 mm, 8.3 mm, 10.4 mm, 12.4 mm, 16.5 mm, 20.5 mm - - - - 6 - -
N° de stock RS 218-624
MarqueRS PRO
20,64 €
Each
Unité
Countersink 25mm 90° 3 HSS - 1 - -
N° de stock RS 673-8701
MarqueRS PRO
6,34 €
Each
Unité
Countersink 8.3mm 90° 3 HSS 50 mm 1 6 mm 38mm
N° de stock RS 673-8697
MarqueRS PRO
53,48 €
1 Set
jeu(x)
Countersink Set 6.3 mm, 8.3 mm, 10.4 mm, 12.4 mm, 16.5 mm, 20.5 mm 90° 3 HSS - 6 - -
N° de stock RS 673-8710
MarqueRS PRO
16,72 €
Each
Unité
Countersink 20.5mm 90° 3 HSS 63 mm 1 10 mm 42mm
N° de stock RS 456-905
MarqueRS PRO
18,08 €
Each
Unité
Countersink 25mm 90° 3 HSS 145 mm 1 - -
N° de stock RS 215-423
MarqueRS PRO
9,91 €
Each
Unité
Countersink 5mm 90° - HSS 45 mm 1 6 mm 32mm
N° de stock RS 673-8717
MarqueRS PRO
12,69 €
Each
Unité
Countersink 16.5mm 90° 3 HSS 63 mm 1 10 mm 42mm
N° de stock RS 423-826
MarqueRS PRO
13,29 €
Each
Unité
Countersink 16.5mm 90° 3 HSS 40 mm 1 7.15 mm 21.5mm
N° de stock RS 423-832
MarqueRS PRO
13,85 €
Each
Unité
Countersink 10.4mm 90° 5 HSS 31 mm 1 7.15 mm 21.5mm
N° de stock RS 423-876
MarqueRS PRO
5,58 €
Each
Unité
Countersink 6.3mm 90° 3 HSS 31 mm 1 7.15 mm 21.5mm
N° de stock RS 218-618
MarqueRS PRO
62,93 €
Each
Unité
Countersink Set 6 mm, 8 mm, 10 mm, 12 mm, 16 mm, 20 mm 90° 5 HSS - 6 - -
N° de stock RS 218-646
MarqueRS PRO
12,06 €
Each
Unité
Countersink 16mm 90° 3 HSS - 1 - -
N° de stock RS 215-473
MarqueRS PRO
12,24 €
Each
Unité
Countersink 5mm 90° - HSS 45 mm 1 6 mm 45mm
N° de stock RS 218-602
MarqueRS PRO
10,13 €
Each
Unité
Countersink 8mm 90° 5 HSS - 1 - -