- Thread cutting tools
- Drills to remove jammed taps
- Hand taps
- Machine taps "M"
- "M" - Through hole
- "M" - Blind hole
- Machine taps "MF"
- "MF" Through hole
- "M" - Blind hole
- Machine taps "G"
- Forming taps
- Forming taps "M"
- Forming taps "MF"
- Thread milling cutters
- Solid carbide threading tools
- Threading dies
- Accessories
- Drills HSS & HSSE
- NC center drills
- NC center drills 90°
- NC center drills 120°
- Center drills
- Center drills Form A
- Center drills Form B
- Center drills Form R
- Drills acc. to DIN
- DIN 338
- DIN 340
- Drills acc. to company standard
- Sets of drills
- Step drills
- Solid carbide drills
- NC center drills
- NC center drills 90°
- NC center drills 120°
- NC center drills 142°
- Center drills
- Step drills
- Drills acc. to DIN
- DIN 1897
- DIN 338
- Company std.
- High performance drills 3xd - 15xd, Uni
- 3xd
- 5xd
- 8xd
- 12xd
- 15xd
- High performance drills 3xd - 8xd, Inox
- 3 xd
- 5 xd
- 8 xd
- Deep hole drills
- High performance drills HRC
- Aluminium drills
- Drill reamer
- Insert drills
- Countersinks and reamers HSS / HSSE
- Countersinks
- Countersinks 90°
- Countersinks 60°
- Reamers
- Reamers H7
- Reamers 1/100
- Solid carbide countersinks and reamers
- 8-fold-tools
- Countersinks
- Deburrer
- Deburrer 45°
- Deburrer 60°
- Deburrer 90°
- Reamers
- Reamers H7
- Reamers 1/100
- HPC/TPC-solid carbide end mills
- HPC Superstar
- Plunge milling cutters
- Trochoidal milling cutters
- Solid carbide end mills
- Inox
- Universal
- Unispecial
- Roughing end mills
- Aluminium
- Mould making
- HSSE end mills
- 2-flute cutters
- 3-flute cutters
- 4-flute and multiple-flute cutters
- Roughing end mills
- Grooving cutters and T-slot cutters
- Angle cutters
- Profile end mills
- Shell end mills
- HSS & Solid carbide slitting saws
- Solid Carbide
- HSS
- Regrinding
Countersinks
HSSE countersink with perfect geometry from Nachreiner
When screws, nuts, or other parts need to be countersunk flush in the workpiece, HSSE countersinks are used in most cases. For cylindrical finishes in the core hole (e.g., in engine cylinder heads), spindle countersinks or flat countersinks are the best choice. For all applications where a conical cut is required, tapered countersinks with different angles are indispensable. Nachreiner's HSSE tapered countersinks are available in many variants with different counterboring angles. The most common versions are:
The areas of application are clearly defined but can be adjusted as needed. Typically, HSSE tapered countersinks with a 60-degree angle are used for deburring core holes. For metric standard countersunk screws, a 90-degree angle is used, while for sheet metal rivets, a 120-degree angle is ideal. Additionally, other angle sizes are available for countersinking rivet heads or screws in US standard sizes. Please take the specifications for your specific application into account when selecting the right tool. If you need assistance, our technical advisors at Nachreiner's service department are always happy to help. This also applies if you need custom-made tools or special finishes (e.g., coatings). We can typically fulfill all specifications or suggest suitable alternatives from our range.
Perfect geometry of the cutting edges of our HSSE countersinks
Precision and smooth operation of the countersink are directly related. Therefore, we place the highest importance on the high-quality manufacturing of our countersinks and the geometrically perfect arrangement of the cutting edges. Most HSSE tapered countersinks available on the market have an odd number of cutting edges, as do ours. The three cutting edges are excellently and precisely crafted, allowing for perfect machining results on all workpieces suitable for machining with high-speed steel (HSS) or HSSE tools. If you plan to process materials with strength far beyond the limits for HSS or HSSE machining, we recommend using solid carbide (VHM) tapered countersinks from our range. Although solid carbide tools are more expensive upfront, they offer better tool life and allow for higher machining speeds. Alternatively, you can have the cutting edges refined or coated to optimize properties (e.g., heat resistance). We are happy to assist you with any questions or requests and can also produce tools to factory standards if standard solutions from our range do not meet your needs. By the way, we can also regrind many cutting tools for you, significantly extending their service life.