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HSS-E Countersink for 180° Capscrew - Fine | Rinaldi-Tools
HSS-E Countersink for 180° Capscrew - Fine | Rinaldi-Tools
    HSS-E Countersink for 180° Capscrew - Fine | Rinaldi-Tools
    HSS-E Countersink for 180° Capscrew - Fine | Rinaldi-Tools

HSS-E Countersink for 180° Capscrew - Fine

€15.90
Tax excluded
Diameter
Quantity

Technical data

Drill Type Flat Countersink
Point Angle 180°
Workpiece Material Steel, NF-Materials
Shank Cylindrical Shank
Flutes 3
Grade HSS-E
Packaging unit 1 Pc.

Dimensions

D D1 Screw Size d L Z
FS-F-180-Z3-D6.0-M3-HSS-E 6 3,2 M3 5 71 3
FS-F-180-Z3-D6.5-M3.5-HSS-E 6,5 3,7 M3,5 5 71 3
FS-F-180-Z3-D8.0-M4-HSS-E 8 4,3 M4 5 71 3
FS-F-180-Z3-D10.0-M5-HSS-E 10 5,3 M5 8 80 3
FS-F-180-Z3-D11.0-M6-HSS-E 11 6,4 M6 8 80 3
FS-F-180-Z3-D15.0-M8-HSS-E 15 8,4 M8 12,5 100 3
FS-F-180-Z3-D18.0-M10-HSS-E 18 10,5 M10 12,5 100 3
FS-F-180-Z3-D20.0-M12-HSS-E 20 13,0 M12 12,5 100 3

Precise countersinking for socket head cap screws

This HSS-E flat countersink with a fixed guide pin (fine grade) is designed for professional 180° countersinking operations. It supports the flush and aligned seating of socket head cap screws and socket head set screws. Manufactured from cobalt-alloyed high-speed steel (HSS-E), the tool offers excellent thermal resistance, making it suitable for machining steel, stainless steel, and non-ferrous metals. The precision pilot ensures reliable coaxial alignment with the pre-drilled hole during the entire operation.

Advantages of the HSS-E Countersink for 180° Capscrew - Fine

  • Reliable centering via a fixed pilot pin for well-aligned flat counterbores
  • Supports extended tool usage and thermal stability provided by the HSS-E grade
  • "Fine" clearance grade ensures a highly accurate fit for the screw head
  • Three-flute design promotes smooth, low-vibration cutting performance
  • Versatile application across steel, stainless steel, and aluminum workpieces

High-performance counterbore for professional metalworking

This flat countersink is specifically designed to create 180° counterbores for the installation of socket head cap screws and set screws. The "fine" clearance grade aims for a highly precise fit, allowing the screw head to be seated accurately within the workpiece. A key feature is the fixed guide pin, which securely centers the tool in the pre-drilled hole, assisting in perfect alignment. Manufactured from cobalt-alloyed high-speed steel (HSS-E), the tool offers remarkable heat tolerance, ensuring reliable performance even in demanding materials. With its three flutes and standard cylindrical shank, it provides a well-thought-out solution for efficient workflows in industrial and trade applications.

Suitable materials

   

Technical data

  • Drill type: Flat countersink with fixed pilot pin
  • Point angle: 180°
  • Clearance grade: Fine
  • Shank type: Cylindrical shank
  • Number of flutes: 3
  • Material grade: HSS-E (cobalt-alloyed)
  • Packaging unit: 1 Piece

Dimensions of HSS-E Countersink for 180° Capscrew - Fine

Item Nr.
 D D1 Screw Size d L Z
FS-F-180-Z3-D6.0-M3-HSS-E 3451021 6 3,2 M3 5 71 3
FS-F-180-Z3-D6.5-M3.5-HSS-E 3451022 6,5 3,7 M3,5 5 71 3
FS-F-180-Z3-D8.0-M4-HSS-E 3451023 8 4,3 M4 5 71 3
FS-F-180-Z3-D10.0-M5-HSS-E 3451024 10 5,3 M5 8 80 3
FS-F-180-Z3-D11.0-M6-HSS-E 3451025 11 6,4 M6 8 80 3
FS-F-180-Z3-D15.0-M8-HSS-E 3451026 15 8,4 M8 12,5 100 3
FS-F-180-Z3-D18.0-M10-HSS-E 3451027 18 10,5 M10 12,5 100 3
FS-F-180-Z3-D20.0-M12-HSS-E 3451028 20 13,0 M12 12,5 100 3

Cutting data

Workpiece Material Tensile strength Cutting Speed Feed fz (mm/U)
(N/mm²) Vc (m/min) Ø 4,3-6,3 Ø 7-10,4 Ø 11,5-15
Structural Steel <450 20 0,08 0,11 0,13
Tempered Steel 450-700 13 0,08 0,11 0,13
Tooling Steel/Tempered Steel >700 10 0,08 0,11 0,13
Stainless Steel <1100 8-12 0,08 0,11 0,13
Aluminum/Aluminum-alloys (<12% Si.) - 35-42 0,08 0,11 0,13
Copper/Brass - 15-28 00,08 0,11 0,13

Applications

The countersinking tool is primarily used in mechanical engineering, plant construction, and metal fabrication to accurately enlarge clearance holes for socket head cap screws. Thanks to its HSS-E quality, the flat counterbore is suitable not only for general structural and tempered steels but also for more challenging materials such as stainless steel or abrasive aluminum alloys. The fixed pilot pin engages with the existing hole, reliably keeping the tool from wandering during the machining process.

The "fine" grade is especially recommended when a very tight tolerance between the screw head and the workpiece contour is required. This supports the mechanical connection in meeting high visual and functional standards.

Special features

The cobalt-alloyed cutting material significantly increases the hot hardness of the counterbore, leading to stable tool usability, particularly when machining stainless steel and tougher steel alloys. The three precision-ground flutes ensure uniform material removal, minimize vibrations, and leave a clean surface finish in the counterbore. The standardized cylindrical shank allows for quick and straightforward clamping in common drill chucks and collets.

Rinaldi-Tools GmbH
3451021

Data sheet

Materials
Cast Iron
NF-Metals
Plastic
Stainless Steel
Steel

6 other products in the same category:

Reverse Countersink – CCMT 06/09 | Rinaldi-Tools
Rinaldi-Tools GmbH

Reverse Countersink - CCMT 06/09

Price ab €94.00
Availability: 1000000 In Stock

Technical data

Mill Type Reverse Countersink
Insert CCMT
Packaging Unit 1 Stück

Dimensions

D Dmin L L1 L2 L3 d g
RS-D18-K40 CCMT 06 18 10 110 60 47 40 20 4,05
RS-D20-K45 CCMT 06 20 12 117 67 52 45 20 3,8
RS-D26-K60 CCMT 06 26 17 132 82 67 60 20 5,05
RS-D33-K75 CCMT 09 33 21 152 102 82 75 20 6,65

Efficient solution for precise back spotfacing

The reverse countersink for CCMT 06 and 09 inserts is a reliable tool for the economic machining of hard-to-reach reverse bores. Its robust design, combined with proven standard indexable inserts, enables consistent results when producing countersinks and flat surfaces without the need for time-consuming workpiece repositioning.

Advantages of Reverse Countersink - CCMT 06/09

  • Saves time by eliminating additional setups
  • Compatible with standardized CCMT 06 and 09 indexable inserts
  • Stable cylindrical shank with 20 mm diameter for low-vibration machining
  • Four stepped versions cover diameters from 18 to 33 mm
HSSCo8 Countersinks 90° Cylindrical Shank | Rinaldi-Tools
Rinaldi-Tools GmbH

HSSCo8 Countersinks 90°

Price ab €10.70
Availability: 10000000 In Stock

Technical data

Mill Type HSSCo8 Countersinks 90°
Point Angle 90°
Workpiece Material Steel, Stainless Steel, Cast Iron, NF-Materials
Processing Countersinking and chamfers
Shank Cylindrical Shank
Flutes 3
Grade HSSCo8
Packaging unit 1 Pc.

Dimensions

a D d L Diameter Range Z
KS-90-Z3-D4.3-HSSCo8 90° 4,3 4 40 1,3 - 4,3 3
KS-90-Z3-D5.0-HSSCo8 90° 5 4 40 1,5 - 5,0 3
KS-90-Z3-D6.0-HSSCo8 90° 6 5 45 1,5 - 6,0 3
KS-90-Z3-D6.3-HSSCo8 90° 6,3 5 45 1,5 - 6,3 3
KS-90-Z3-D7.0-HSSCo8 90° 7 6 50 1,8 - 7,0 3
KS-90-Z3-D8.0-HSSCo8 90° 8 6 50 2,0 - 8,0 3
KS-90-Z3-D8.3-HSSCo8 90° 8,3 6 50 2,0 - 8,3 3
KS-90-Z3-D10.0-HSSCo8 90° 10 6 50 2,5 - 10,0 3
KS-90-Z3-D10.4-HSSCo8 90° 10,4 6 50 2,5 - 10,4 3
KS-90-Z3-D11.5-HSSCo8 90° 11,5 8 56 2,8 - 11,5 3
KS-90-Z3-D12.4-HSSCo8 90° 12,4 8 56 2,8 - 12,4 3
KS-90-Z3-D15.0-HSSCo8 90° 15 10 60 3,2 - 15,0 3
KS-90-Z3-D16.5-HSSCo8 90° 16,5 10 60 3,2 - 16,5 3
KS-90-Z3-D19.0-HSSCo8 90° 19 10 63 3,5 - 19,0 3
KS-90-Z3-D20.5-HSSCo8 90° 20,5 10 63 3,5 - 20,5 3
KS-90-Z3-D23.0-HSSCo8 90° 23 10 67 3,8 - 23,0 3
KS-90-Z3-D25.0-HSSCo8 90° 25 10 67 3,8 - 25,0 3
KS-90-Z3-D30.0-HSSCo8 90° 30 12 71 4,2 - 30,0 3
KS-90-Z3-D31.0-HSSCo8 90° 31 12 71 4,2 - 31,0 3

High-performance HSSCo8 countersink for burr-free deburring

The HSSCo8 Countersinks 90° are essential cutting tools for professional countersinking and deburring tasks across a wide range of materials. Featuring three precision-ground flutes and a 90° point angle, these tools provide clean, burr-free finishes in steel, stainless steel, cast iron, and non-ferrous materials. The 8% cobalt alloy (HSSCo8) increases heat resistance, securing high wear resistance even in demanding machining environments. Equipped with a straight cylindrical shank, the countersink can be clamped securely into standard holders, promoting smooth rotation and optimal torque transfer. This reliable tool supports efficient workflows in both industrial manufacturing and workshop settings.

Advantages of HSSCo8 Countersinks 90°

  • Three precision flutes ensure smooth, chatter-free countersinking
  • Cobalt substrate (HSSCo8) offers enhanced heat resistance and tool life
  • Suitable for versatile machining from structural steel to stainless steel
  • 90° point angle is perfectly aligned for standard countersunk screws
  • Cylindrical shank allows for secure, centered clamping
HSS-E Countersink for 180° Capscrew - Medium | Rinaldi-Tools
Rinaldi-Tools GmbH

HSS-E Countersink for 180° Capscrew - Medium

Price ab €15.90
Availability: 1000000 In Stock

Technical data

Drill Type Flat Countersink
Point Angle 180°
Workpiece Material Steel, NF-Materials
Shank Cylindrical Shank
Flutes 3
Grade HSS-E
Packaging unit 1 Pc.

Dimensions

D D1 Screw Size d L Z
FS-M-180-Z3-D6.0-M3-HSS-E 6 3,4 M3 5 71 3
FS-M-180-Z3-D6.5-M3.5-HSS-E 6,5 3,9 M3,5 5 71 3
FS-M-180-Z3-D8.0-M4-HSS-E 8 4,5 M4 5 71 3
FS-M-180-Z3-D10.0-M5-HSS-E 10 5,5 M5 8 80 3
FS-M-180-Z3-D11.0-M6-HSS-E 11 6,6 M6 8 80 3
FS-M-180-Z3-D15.0-M8-HSS-E 15 9,0 M8 12,5 100 3
FS-M-180-Z3-D18.0-M10-HSS-E 18 11,0 M10 12,5 100 3
FS-M-180-Z3-D20.0-M12-HSS-E 20 14,0 M12 12,5 100 3

Reliable Counterboring for Capscrews

The HSS-E Countersink for 180° Capscrew in the "Medium" fit is a highly capable cutting tool designed for professional metalworking operations. It is specifically engineered to produce flat-bottomed counterbores with a 180° point angle. This setup creates ideal conditions for recessing socket head cap screws and socket head set screws flush within the workpiece. The integrated pilot securely guides the tool inside the pre-drilled through hole, effectively preventing deflection and supporting a stable machining process.

Advantages of HSS-E Countersink for 180° Capscrew - Medium

  • Three efficient flutes support a uniform cutting action and clean surfaces
  • Integrated pilot facilitates exact coaxial alignment in the existing drilled hole
  • Manufactured from robust HSS-E, offering favorable properties for machining steel and NF materials
  • Universal cylindrical shank enables uncomplicated clamping in common tool holders
  • Designed for medium clearance through holes to support practical screw fits
  • Delivered in a secure packaging unit (1 pc.)
HSSCo8 Countersinks 120° online shop | Rinaldi-Tools
Rinaldi-Tools GmbH

HSSCo8 Countersinks 120°

Price ab €19.30
Availability: 1932735274 In Stock

Technical data

Mill Type HSSCo8 Countersinks 120°
Point Angle 120°
Workpiece Material Steel, Stainless Steel, Cast Iron, NF-Materials
Processing Countersinking and chamfers
Shank Cylindrical Shank
Flutes 3
Grade HSSCo8
Packaging unit 1 Pc.

Dimensions

a D d L Diameter Range Z
KS-120-Z3-D8.0-HSSCo8 120° 8 6 49 2,0 - 8,0 3
KS-120-Z3-D12.5-HSSCo8 120° 12,5 8 54 2,8 - 12,5 3
KS-120-Z3-D16.0-HSSCo8 120° 16 10 57 3,2 - 16,0 3
KS-120-Z3-D20.0-HSSCo8 120° 20 10 59 3,5 - 20,0 3
KS-120-Z3-D25.0-HSSCo8 120° 25 10 65 3,8 - 25,0 3

HSSCo8 Countersinks 120° for professional chamfering

The HSSCo8 countersink 120° is a high-precision cutting tool designed for countersinking and deburring holes in various materials. Equipped with a cylindrical shank and three flutes, this countersink offers high wear resistance and safe chip evacuation. It is ideally suited for industrial and professional manufacturing applications.

Advantages of HSSCo8 Countersinks 120°

  • Clean and chatter-free deburring due to proven 3-flute geometry
  • Long tool life and high hot hardness thanks to premium HSSCo8 material
  • Wide range of applications in steel, stainless steel, cast iron, and non-ferrous metals
  • Optimal tool holding and power transmission via standardized cylindrical shank
  • Controlled entry geometry thanks to a precise 120° point angle
HSSCo8 Countersinks 60° – 3 Flutes Deburring | Rinaldi-Tools
Rinaldi-Tools GmbH

HSSCo8 Countersinks 60°

Price ab €11.90
Availability: 1932735275 In Stock

Technical data

Mill Type HSSCo8 Countersinks 60°
Point Angle 60°
Workpiece Material Steel, Stainless Steel, Cast Iron, NF-Materials
Processing Countersinking and chamfers
Shank Cylindrical Shank
Flutes 3
Grade HSSCo8
Packaging unit 1 Pc.

Dimensions

a D d L Diameter Range Z
KS-60-Z3-D6.3-HSSCo8 60° 6,3 5 45 1,6 - 6,3 3
KS-60-Z3-D8.0-HSSCo8 60° 8 6 50 2,0 - 8,0 3
KS-60-Z3-D10.0-HSSCo8 60° 10 6 50 2,5 - 10,0 3
KS-60-Z3-D12.5-HSSCo8 60° 12,5 8 56 3,2 - 12,5 3
KS-60-Z3-D16.0-HSSCo8 60° 16 10 63 4,0 - 16,0 3
KS-60-Z3-D20.0-HSSCo8 60° 20 10 67 5,0 - 20,0 3
KS-60-Z3-D25.0-HSSCo8 60° 25 10 71 6,3 - 25,0 3

Precision HSSCo8 Countersinks 60° for flawless deburring

The HSSCo8 countersink with a 60° point angle is designed for professional countersinking and deburring tasks. Manufactured from high-speed steel with 8% cobalt (HSSCo8), it offers excellent wear resistance and hot hardness. Equipped with three cutting edges, this tool supports smooth, chatter-free machining and delivers clean surface finishes across various materials.

Advantages of HSSCo8 Countersinks 60°

  • Three flutes ensure smooth, chatter-free deburring
  • High wear resistance and temperature stability due to HSSCo8
  • Suitable for steel, stainless steel, cast iron, and non-ferrous metals
  • Cylindrical shank for secure mounting in standard tool holders
HSS-E Countersink for 180° Capscrew - For Tapping Core Holes
Rinaldi-Tools GmbH

HSS-E Countersink for 180° Capscrew - For Tapping Core Holes

Price ab €15.90
Availability: 1000000 In Stock
Drill Type Flat Countersink
Point Angle 180°
Workpiece Material Steel, NF-Materials
Shank Cylindrical Shank
Flutes 3
Grade HSS-E
Packaging unit 1 Pc.

For countersinking holes for socket head cap screws and cheese-head screws.

D D1 Screw Size d L Z
FS-G-180-Z3-D6.0-M3-HSS-E 6 2,5 M3 5 71 3
FS-G-180-Z3-D6.5-M3.5-HSS-E 6,5 2,9 M3,5 5 71 3
FS-G-180-Z3-D8.0-M4-HSS-E
 8 3,3 M4 5 71 3
FS-G-180-Z3-D10.0-M5-HSS-E
 10 4,2 M5 8 80 3
FS-G-180-Z3-D11.0-M6-HSS-E
 11 5,0 M6 8 80 3
FS-G-180-Z3-D15.0-M8-HSS-E
 15 6,8 M8 12,5 100 3
FS-G-180-Z3-D18.0-M10-HSS-E
 18 8,5 M10 12,5 100 3
FS-G-180-Z3-D20.0-M12-HSS-E
 20 10,2 M12 12,5 100 3