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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รายละเอียดสินค้า / Description ราคา / Price Drill Bit Type Head Diameter Countersink Angle Number of Flutes Material Overall Length Number of Pieces Shank Diameter Shank Length
RS Stock No. 666-7422
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G13616.5
Brand :Dormer
THB1,336.50
Each
Units
Countersink 16.5mm 90° 3 HSS 60 mm 1 10 mm -
RS Stock No. 123-1857
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.104655
Brand :Wera
THB3,350.62
Each
Units
Countersink Set 6.3 mm, 8.3 mm, 10.4 mm, 12.4 mm, 16.5 mm, 20.5 mm 90° - HSS - 8 - -
RS Stock No. 666-7435
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G13625.0
Brand :Dormer
THB2,623.64
Each
Units
Countersink 25mm 90° 3 HSS 67 mm 1 10 mm -
RS Stock No. 218-567
Brand :RS PRO
THB2,346.87
Each
Units
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 Stock No. 123-1853
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.104650
Brand :Wera
THB3,356.57
Each
Units
Countersink Set 6.3 mm, 8.3 mm, 10.4 mm, 12.4 mm, 16.5 mm, 20.5 mm - 3 - - 8 - -
RS Stock No. 666-7426
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G13620.5
Brand :Dormer
THB1,814.39
Each
Units
Countersink 20.5mm 90° 3 HSS 63 mm 1 10 mm -
RS Stock No. 812-6012
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G2363
Brand :Dormer
THB7,444.71
Each
Units
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 Stock No. 812-6018
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G2361
Brand :Dormer
THB5,317.78
Each
Units
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 Stock No. 508-9058
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.05527
Brand :EXACT
THB2,528.31
1 Set
Set(s)
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 Stock No. 499-380
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.4405727
Brand :EXACT
THB2,877.75
1 Set
Set(s)
Countersink Set 6.3 mm, 8.3 mm, 10.4 mm, 12.4 mm, 16.5 mm, 20.5 mm 90° 3 HSS-E - 6 - -
RS Stock No. 508-8982
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.05649
Brand :EXACT
THB3,120.35
1 Set
Set(s)
Countersink Set 20.5mm 90° 3 HSS - 9 - -
RS Stock No. 305-4505
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.3525HB
Brand :Bahco
THB841.48
Each
Units
Countersink - - - - - 1 - -
RS Stock No. 215-495
Brand :RS PRO
THB1,060.31
Each
Units
Countersink 15mm 90° - HSS 65 mm 1 10 mm 37.5mm
RS Stock No. 666-7429
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G13612.4
Brand :Dormer
THB1,064.06
Each
Units
Countersink 12.4mm 90° 3 HSS 56 mm 1 8 mm -
RS Stock No. 456-898
Brand :RS PRO
THB829.07
Each
Units
Countersink 12mm - 3 HSS 120 mm 1 - -
RS Stock No. 215-467
Brand :RS PRO
THB2,773.71
Each
Units
Countersink Set 2 mm, 5 mm, 10 mm, 15 mm, 20 mm 90° - HSS - 4 - -
RS Stock No. 508-9092
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.05644
Brand :EXACT
THB404.24
Each
Units
Countersink 12.4mm 90° 3 HSS 35 mm 1 1/4 in -
RS Stock No. 136-3941
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G10710.4
Brand :Dormer
THB1,734.18
Each
Units
Countersink 10.4mm 90° 3 HSS-E 50 mm 1 6.35 mm -
RS Stock No. 136-3946
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.G1066.3
Brand :Dormer
THB1,098.72
Each
Units
Countersink 6.3mm 90° 3 HSS 45 mm 1 5 mm -
RS Stock No. 423-848
Brand :RS PRO
THB802.68
Each
Units
Countersink 14mm 90° - HSS 48 mm 1 7.15 mm 20mm