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 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
  1. 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 on centre.
  2. 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 using 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 centering 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
MaterialsThese countersink cutter drill bits are made from HSS (High-Speed Steel) which can withstand high temperatures without losing its hardness.

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Omschrijving Prijs Head Diameter Countersink Angle Number of Flutes Material Overall Length Shank Diameter Shank Length
RS-stocknr. 666-7426
FabrikantnummerG13620.5
FabrikantDormer
39,10 €
Each
Aantal stuks
20.5mm 90° 3 HSS 63 mm 10 mm -
RS-stocknr. 666-7435
FabrikantnummerG13625.0
FabrikantDormer
56,40 €
Each
Aantal stuks
25mm 90° 3 HSS 67 mm 10 mm -
RS-stocknr. 456-898
FabrikantRS PRO
11,49 €
Each
Aantal stuks
12mm - 3 HSS 120 mm - -
RS-stocknr. 673-8708
FabrikantRS PRO
8,53 €
Each
Aantal stuks
12.4mm 90° 3 HSS 56 mm 8 mm 41mm
RS-stocknr. 218-624
FabrikantRS PRO
20,44 €
Each
Aantal stuks
25mm 90° 3 HSS - - -
RS-stocknr. 666-7410
FabrikantnummerG13610.4
FabrikantDormer
20,30 €
Each
Aantal stuks
10.4mm 90° 3 HSS 50 mm 6 mm -
RS-stocknr. 673-8717
FabrikantRS PRO
12,56 €
Each
Aantal stuks
16.5mm 90° 3 HSS 63 mm 10 mm 42mm
RS-stocknr. 509-0008
Fabrikantnummer05522
FabrikantEXACT
18,26 €
Each
Aantal stuks
25mm 90° 3 HSS 67 mm 10 mm -
RS-stocknr. 673-8710
FabrikantRS PRO
16,55 €
Each
Aantal stuks
20.5mm 90° 3 HSS 63 mm 10 mm 42mm
RS-stocknr. 215-423
FabrikantRS PRO
9,81 €
Each
Aantal stuks
5mm 90° - HSS 45 mm 6 mm 32mm
RS-stocknr. 499-384
Fabrikantnummer4405706
FabrikantEXACT
9,14 €
Each
Aantal stuks
6.3mm 90° 3 HSS-E 45 mm 5 mm -
RS-stocknr. 423-838
FabrikantRS PRO
17,73 €
Each
Aantal stuks
15.3mm 90° 5 HSS 32 mm 7.15 mm 21.5mm
RS-stocknr. 673-8701
FabrikantRS PRO
6,28 €
Each
Aantal stuks
8.3mm 90° 3 HSS 50 mm 6 mm 38mm
RS-stocknr. 456-905
FabrikantRS PRO
16,28 €
Each
Aantal stuks
25mm 90° 3 HSS 145 mm - -
RS-stocknr. 508-9092
Fabrikantnummer05644
FabrikantEXACT
10,12 €
Each
Aantal stuks
12.4mm 90° 3 HSS 35 mm 1/4 in -
RS-stocknr. 136-3944
FabrikantnummerG10716.5
FabrikantDormer
85,40 €
Each
Aantal stuks
16.5mm 90° 3 HSS-E 50 mm 6.35 mm -
RS-stocknr. 812-6030
FabrikantnummerG57016.5
FabrikantDormer
67,10 €
Each
Aantal stuks
16.5mm 90° 3 HSS 60 mm 10 mm -
RS-stocknr. 218-573
FabrikantRS PRO
23,79 €
Each
Aantal stuks
20mm 90° 5 HSS - - -
RS-stocknr. 666-7429
FabrikantnummerG13612.4
FabrikantDormer
22,90 €
Each
Aantal stuks
12.4mm 90° 3 HSS 56 mm 8 mm -
RS-stocknr. 499-390
Fabrikantnummer4405710
FabrikantEXACT
10,38 €
Each
Aantal stuks
8.3mm 90° 3 HSS-E 50 mm 6 mm -
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