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

Materials
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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Omschrijving Prijs Head Diameter Countersink Angle Number of Flutes Material Overall Length Shank Diameter Shank Length
RS-stocknr. 215-423
FabrikantRS PRO
€ 8,53
Each
Aantal stuks
5mm 90° - HSS 45 mm 6 mm 32mm
RS-stocknr. 666-7422
FabrikantnummerG13616.5
FabrikantDormer
€ 28,80
Each
Aantal stuks
16.5mm 90° 3 HSS 60 mm 10 mm -
RS-stocknr. 499-384
Fabrikantnummer4405706
FabrikantEXACT
€ 9,14
Each
Aantal stuks
6.3mm 90° 3 HSS-E 45 mm 5 mm -
RS-stocknr. 666-7426
FabrikantnummerG13620.5
FabrikantDormer
€ 39,10
Each
Aantal stuks
20.5mm 90° 3 HSS 63 mm 10 mm -
RS-stocknr. 562-634
FabrikantRS PRO
€ 11,95
Each
Aantal stuks
6mm 90° 5 HSS 45 mm 5 mm 35mm
RS-stocknr. 218-551
FabrikantRS PRO
€ 5,97
Each
Aantal stuks
6mm 90° 3 HSS - - -
RS-stocknr. 215-439
FabrikantRS PRO
€ 9,90
Each
Aantal stuks
10mm 90° - HSS 48 mm 8 mm 30.5mm
RS-stocknr. 456-898
FabrikantRS PRO
€ 9,99
Each
Aantal stuks
12mm - 3 HSS 120 mm - -
RS-stocknr. 218-573
FabrikantRS PRO
€ 20,69
Each
Aantal stuks
20mm 90° 5 HSS - - -
RS-stocknr. 666-7404
FabrikantnummerG1366.3
FabrikantDormer
€ 16,90
Each
Aantal stuks
6.3mm 90° 3 HSS 45 mm 5 mm -
RS-stocknr. 666-7416
FabrikantnummerG13610.0
FabrikantDormer
€ 21,50
Each
Aantal stuks
10mm 90° 3 HSS 50 mm 6 mm -
RS-stocknr. 673-8704
FabrikantRS PRO
€ 6,09
Each
Aantal stuks
10.4mm 90° 3 HSS 50 mm 6 mm 36mm
RS-stocknr. 499-396
Fabrikantnummer4405713
FabrikantEXACT
€ 12,64
Each
Aantal stuks
10.4mm 90° 3 HSS-E 50 mm 6 mm -
RS-stocknr. 666-7429
FabrikantnummerG13612.4
FabrikantDormer
€ 22,90
Each
Aantal stuks
12.4mm 90° 3 HSS 56 mm 8 mm -
RS-stocknr. 673-8691
FabrikantRS PRO
€ 4,34
Each
Aantal stuks
6.3mm 90° 3 HSS 45 mm 5 mm 35mm
RS-stocknr. 666-7410
FabrikantnummerG13610.4
FabrikantDormer
€ 20,30
Each
Aantal stuks
10.4mm 90° 3 HSS 50 mm 6 mm -
RS-stocknr. 499-407
Fabrikantnummer4405715
FabrikantEXACT
€ 13,59
Each
Aantal stuks
12.4mm 90° 3 HSS-E 56 mm 8 mm -
RS-stocknr. 509-0014
Fabrikantnummer05513
FabrikantEXACT
€ 7,69
Each
Aantal stuks
10.4mm 90° 3 HSS 50 mm 6 mm -
RS-stocknr. 215-489
FabrikantRS PRO
€ 10,11
Each
Aantal stuks
10mm 90° - HSS 48 mm 8 mm 30.5mm
RS-stocknr. 509-0008
Fabrikantnummer05522
FabrikantEXACT
€ 18,26
Each
Aantal stuks
25mm 90° 3 HSS 67 mm 10 mm -
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