Multi-cutting edge high-performance reamers for large diameter ranges

No setting and four cutting edges significantly reduce cost-per-part

Efficient reconditioning was the focus of the development of the HPR400 reamers. The multi-bladed tools impress due to high cost-effectiveness thanks to fast application data and simple insert changing on site by the customer. This is possible due to the highly accurate insert seats. As such the logistics costs for transport to the manufacturer are completely eliminated. Tool stock and reconditioning costs are at a low level.

The indexable inserts of the HPR400 plus have four cutting edges. The cutting material is therefore optimally utilised. They are produced so accurately that they can be rotated or changed on-site by the customer's staff without problems. As a consequence the inventory of inserts can be further reduced, the reconditioning costs and therefore the cost-per-part drop.

Reduced costs due to innovative reconditioning

The HPR300 reaming system for large diameters convinces with the fact that the brazed tools can be re-tipped and re-coated far more quickly and less expensively. 
Clamping jaws securely clamp the cutting edges as blanks. Then the diameter and cutting lead geometry are ground with high precision.
For reconditioning, the worn cutting edges can be easily and quickly replaced with new cutting edge blanks and again ground to the original quality with μ precision.
The tool body and in particular the shank retain their original, high accuracy. On the replacement of the cutting elements, the tool body is not subjected to any thermal loads whatsoever and complex cleaning processes are not required. 

On average, brazed tools can be reconditioned a maximum of four times, while the HPR300 reamers can be re-tipped at least ten times. 
As such, the tools pay for themselves already after the first few reconditioning cycles and provide significant cost savings over the entire service life without degradations in the performance compared with brazed tools.