Countersink from BAER for a secure finish

The utmost care is required when working with metal, because sharp edges that pose a risk of injury and protruding burrs develop particularly quickly here. The edge of a drill hole in particular is susceptible to residues of the material, which not only look unsightly but can also quickly cause small cuts and scratches. To counter this problem, the taper countersink or borehole countersink is your tool of choice.

The countersink deburrs the drill hole and countersinks it, for example to countersink screws, so that they disappear completely into the workpiece. So not only do you remove sharp-edged residues, you also create a clean finish and a comfortable starting situation for further work, e.g. with a precision threading tool such as the tap. With a drill hole countersink, you will succeed in creating a flush surface of your workpiece without any disturbing unevenness.

As specialists in all aspects of tapping, taper countersinks are especially close to our hearts at BAER. Countersinking is not only a small but important step on the way to a perfectly cut thread. It also ensures a professional-looking end result that can't be beat for cleanliness and precision. We want you to be completely satisfied with your work. That's why you'll find the right taper countersink for your project at our Online-Shop. Take a look around and see for yourself!

This is the conical countersink: Compact design with great effect

The design of the taper countersink is as simple as it is effective. The conical head is defined by its maximum diameter and the countersinking angle. The diameter indicates the bore sizes for which the countersink is suitable. You select the countersinking angle according to your application. The range extends from 60° for pure deburring to 120° if you want to use the countersink for countersinking sheet metal rivets. The most common angle, however, is 90°, because this angle is suitable for countersinking commercially available countersunk screws. The cutting edge in the head of the countersink ensures that the material is removed, and the groove profile removes the abrasion. The shank of the countersink differs according to the machine with which you use it. The most common is a cylindrical shank, for use in hand drills there are also countersinks with a bit shank.

In addition to the classic form of the countersink, there are also some special variants for special cases. The transverse countersink has a larger head shape in which an opening is made. This results in a peeling cut. The chips are not discharged via a groove, but upwards through the opening in the drill head. This effectively prevents material residues from jamming in the workpiece. For countersinking cylinder head screws or hexagonal screws, you need a flat or tang countersink. Slip-on countersinks can simply be attached to an existing twist drill and are particularly suitable if you only rarely need a taper countersink.

On one view

Existing holes are reworked with the countersink:

  • Deburring - for smooth cut edges
  • Sinking - for countersinking screws


Find the right countersink for your requirement. Contact us.

HSSG countersink for normal applications

BAER-HSSG taper countersink made of high-speed steel: ✓ countersink without burrs and chatter ✓ deburr ✓ countersink ✓ for light metals up to 800 N/mm²

Do you want to machine normal steels, cast iron, iron, sheet metal, aluminum and light metals up to 800 N/mm² with the countersink? Then the BAER-HSSG countersink made of high-performance high-speed steel is the right choice. It allows you to countersink, deburr and countersink without burrs or chatter.

HSSG countersink with 1/4" bit holder for cordless screwdriver

These high-speed steel countersinks are the right solution for cordless screwdrivers with 1/4" bit receptacle.

Be it the do-it-yourselfer or the professional craftsman - cordless screwdrivers can be found in almost every toolbox. For this and for turning handles or ratchets with 1/4" bit receptacle, these taper countersinks made of high-performance high-speed steel with special shank are the right solution. They are suitable for machining normal steels, cast iron, iron, sheet metal, aluminum and light metals up to 800 N/mm².

Countersink sets

Countersink sets - Several sizes at the same time in one handle. The plastic box stacks well, closes securely and opens easily.

Several sizes at the same time in one handle: This is what we offer you with the BAER countersink sets. The plastic box stacks well, closes securely and opens easily. The countersinks are clearly presented in different sizes - all you have to do is choose.

HSSE-VAP Countersink for stainless steels

HSSE-VAP countersink for stainless steels: The vaporized surface and the HSSE grades with cobalt alloy ensure the best results at low cutting speeds.

For countersinking in stainless steel a special tool material is necessary. The HSSE-VAP countersinks from BAER with the vaporized surface and the HSSE types with cobalt alloy meet this requirement. Best results are achieved at low cutting speeds. Suitable for stainless steels V2A, V4A, Inox and high-strength steels.

HSSG cross hole counterbores - counterbores without chip jams

BAER HSSG cross hole countersink - clean results with easy handling, thanks to side opening for chip removal. Discover now!

In contrast to the taper countersink, the cross hole countersink has a lateral opening through which the chips are discharged. This prevents the chips from jamming between the drill and the workpiece. With BAER HSSG cross hole countersinks, which are mainly used for deburring, you achieve clean results with easy handling.

How to use the conical countersink

If you want to use a countersink in your project to countersink screws, first measure the head of the screw. Then select a taper countersink with a suitable maximum diameter. Now you can start countersinking. When doing so, you should always work at low cutting speeds and generally apply little force. In this way, you will achieve optimum and clean results with the longest possible service life of the countersink.

How deep the conical countersink should penetrate the material depends on the desired result. If you only want to deburr the drill hole with the countersink, then a few millimeters are sufficient. When countersinking screws, however, you should use the maximum diameter of the countersink. This is the only way to ensure that the screw can really be countersunk completely and that you end up with a flat surface.

BAER-UNI products- All-rounder threading tools for best results

The UNI products from BAER are characterized by their universal application possibilities and, at the same time, long service lives. We have developed material structures, geometries and coatings especially with our customers in order to produce threads flexibly and efficiently.

UNIForm - Taps for all applications

UNIForm - universal tap

Fast and efficient - this is how easy it is to produce internal threads mechanically with the thread former. You can use the UNIForm thread former for almost all materials. Your advantage: The application is uncomplicated and the result is excellent. You have little effort and save costs at the same time.

UNITap - Taps for all applications

UNITap - universal tap

The unique cutting geometry combined with the TiAIN coating makes the UNITap tap an all-rounder: It can be used in almost all materials and ensures optimum results. This means you only need one tap to machine all the materials you want. This saves time and costs - a real revolution in tapping.

Find the right countersink in BAER Online-Shop

Precision, quality and a long service life for our products - that is the BAER philosophy. And of course it all starts with the raw material used. We exclusively use high-speed steel (HSS) for our countersinks. This high quality tool steel convinces with its very good temperature properties, which allow high cutting speeds. High-speed steel can also be ground excellently. This is an advantage during production, but you as a customer also benefit from this property. This is because countersinks made of HSS can be reground should they become dulled over time. This means you can use them longer and don't have to buy new ones every time.

In our BAER Online-Shop you will find countersinks for all applications and materials. Our standard version is suitable for normal steels, cast iron, iron, sheet metal, aluminum and light metals. The use on stainless steel allows the countersinks made of HSSE with cobalt alloy and a vaporized surface. For uncomplicated use in cordless screwdrivers - whether in the workshop or in the hobby cellar at home - we have a series of bits for cordless screwdrivers in our program. And last but not least, you can choose from our cross-hole countersinks.

The taper countersinks in the BAER Online-Shop are standardized according to the specifications for metric standard threads. This makes it particularly easy for you to buy all the tools for your threads from a single source. So you can always be sure that everything fits together correctly. You can purchase the countersinks individually or look in our sets and assortments, which bring a range of dimensions.

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Countersink from BAER - Quality with tradition

At BAER, we love our craft and we know you love yours. That's why we offer only the highest quality manufactured tools that give you precise work and clean, professional results. From raw material selection to delivery, we pay attention to every detail. And because we care about your satisfaction, we invite you to approach us with questions, suggestions and ideas at any time with our first-class service. You would like to know which conical countersink is the right one for your business? Do you have basic questions about the application or are you stuck with a problem? No request is too small, no project too big. Feel free to give us a try and contact our friendly customer service team!