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HSS, Powder Metal & Carbide Countersinks
Ideal for countersinking, chamfering & deburring on a variety of materials.
  
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Browse by material
Powder Metal Countersinks
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
Blu-Tec coated HSS-PM countersinks offer performance comparable to carbide in unstable machining conditions.
HSS Countersinks
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
Uncoated & coated HSS countersinks. Karnasch’s HSS-XE substrate gives performance & tool life above standard HSS.
Carbide Countersinks
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
Uncoated & Blu-Tec coated carbide countersinks for the highest performance & precision countersinking operations.
Browse by Type
Standard Countersinks
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
For general & high performance countersinking, in CNC, manual or hand held applications.
High Precision Countersinks
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
For where accuracy & precision is important. Many feature chatter-free designs to obtain excellent surface finish.
Long Length Countersinks
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
Elongated shank for long reach applications, or where deep hole countersinking is required.
Chamfering Countersinks
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
HSS 8% cobalt countersinks ideal for sheet materials, wood or hard plastics.
Deburring Countersinks
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
HSS 8% cobalt countersinks with hole for light metals and plastics.
Countersink Sets
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
5 piece, 6 piece or ‘mega’ set for countersinking multiple sizes at one economical price.
Browse by Angle
60° Countersinks
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
HSS 8% cobalt countersinks ideal for sheet materials, wood or hard plastics.
90° Countersinks
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
HSS 8% cobalt countersinks with hole for light metals and plastics.
120° Countersinks
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
5 piece, 6 piece or ‘mega’ set for countersinking
multiple sizes at one economical price.
Advantages
Higher Feed Rates
Ultra-high feed rates with 4-5 flute carbide countersinks.
Blu-Tec Coating
Blu-Tec coated countersinks ideal for alloy steel, stainless steel & HRSA’s.
RAPID-CUT
Get NO vibration when using RAPID-CUT countersinks.
Features
Tool Holding
Straight shank carbide countersinks suitable for hydraulic or shrink fit chucks.
Performance Levels
HSS, powder metal & carbide available depending on set-up and required performance.
Countersink Sets
Perfect for where multiple diameters need to be machined, such as sub-con work.
Have you also considered?Â
Soluble Cutting Fluids
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
Wide range of semi-synthetic cutting fluids from ROCOL, Millers Oil & FUCHS. For milling, drilling, turning & threading.
YG-1 Dream Drills HSS & Powder
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
YG-1’s flagship range of high performance carbide drills. Self centering & can drill to a reamed tolerance
HSS & Powder Metal Drills
HSS, Powder Metal and Carbide milling cutters for general multi-purpose milling applications.
High speed steel & powder metal twist
drills for general and high performance
drilling.
What are countersinks?
Countersinks are conical-shaped holes or depressions cut into a material, typically metals, plastics, or wood. They are designed to allow the head of a screw, bolt, or rivet to sit flush with or below the surface of the material. This creates a smooth, even surface, which can help prevent snagging or interference with other objects. Countersinks are typically created using specialized tools called countersink bits or countersink cutters. These tools have a conical cutting edge that removes material gradually, creating the desired shape and depth of the countersink. Countersinks are commonly used in woodworking, metalworking, and other fabrication processes where fasteners need to be securely attached without protruding above the surface. They are particularly useful in applications where appearance and aerodynamics are important, such as in aircraft manufacturing or fine woodworking.
HSS vs Carbide Countersinks
High-Speed Steel (HSS) and carbide countersink tools are both used for creating countersinks, but they have several differences in terms of material composition, performance, and application.
Material Composition
HSS countersinks are made from high-speed steel, which is a type of alloy steel that contains a significant amount of tungsten, molybdenum, chromium, and vanadium. HSS tools are known for their toughness, durability, and ability to withstand high temperatures. Carbide countersink tools are made from carbide, which is a composite material consisting of carbide particles (usually tungsten carbide) bonded together with a metallic binder (usually cobalt). Carbide tools are extremely hard and wear-resistant, making them suitable for demanding machining applications.
Performance
HSS countersink tools offer good performance in a wide range of materials, including metals, plastics, and wood. They can maintain sharp cutting edges for extended periods under moderate cutting conditions. Carbide countersinks provide superior performance in terms of cutting speed, tool life, and wear resistance, especially in hard and abrasive materials like hardened steel, cast iron, and composites. Carbide countersinks can maintain sharp cutting edges for longer periods compared to HSS tools, resulting in higher productivity and lower tool replacement costs.
Application
HSS countersink tools are suitable for general-purpose machining tasks and applications where high cutting speeds and feed rates are not required. They are commonly used in woodworking, light metalworking, and general fabrication. Carbide countersinks are preferred for high-speed machining operations and applications involving hard or abrasive materials. They are commonly used in aerospace, automotive, mould and die making, and other industries where precision and productivity are critical. In summary, while both HSS and carbide countersink tools serve the same purpose, the choice between them depends on factors such as material being machined, cutting conditions, desired performance, and budget considerations. HSS tools offer good versatility and cost-effectiveness, while carbide tools provide superior performance and durability, especially in demanding machining applications.
What types of countersink are available?
When considering which countersink is needed for an application, some common considerations are the angle, feature set and geometry. Taking a look at each factor in-turn, this can be used as a selection guide to help identify the perfect countersink tool for your application.
Angle
Countersink tools are available in a variety of angles, each suited to different applications and materials. The most common angles for countersinks include:
These are some of the most common angles for countersink tools, but other angles are available as well, depending on specific application requirements. The choice of countersink angle depends on factors such as the material being machined, the type of fastener being used, and the desired appearance and functionality of the countersink.
Geometry
Countersinks are available in various geometries to suit different applications and machining requirements. Some common geometries include:
These are just a few examples of the geometries available for countersinks. The choice of geometry depends on factors such as the material being machined, the specific application requirements, and the desired surface finish.
Features
Countersink tools from Cutwel offer several key features and advantages which maximise their efficiency and performance in a variety of applications. These include:
These are some of the features commonly found in countersink tools. The choice of features depends on factors such as the specific application, material being machined, desired results, and user preferences.