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Lach Diamant Products
IC-Plus - The Titan of the Chipbreaker
IC-Plus - The Titan of the Chipbreaker
PCD Insert with active Chipbreaker
Jakob Lach GmbH & Co. KG
Inserts for turning
from 0,1 mm
aluminium-, magnesium-, copper-, bronze- alloy
from 0,1 mm
aluminium-, magnesium-, copper-, bronze- alloy
While CO-type chip breakers only redirect the chips, the new »IC-plus world`s best« chip breaker will already guide chips with a cutting depth (ap) of 0.01 mm. The cutting depth can be increased up to the maximum length of the cutting edge.

LACH DIAMANT can look back on twenty years of experience in the development of PCD chip breakers.

The first CO-type patent was issued on January 26, 1999: A laser cut chip groove for PCD materials.

Practice has shown, however, that chip breakers with a so manufactured chip groove have proven to be only suitable to a limited extent for a process-reliable, controlled chip breaking process of long chipping aluminium alloys.

An active chip breaker was the final solution. It had to show outstanding performance during rough machining as well as fine finishing.

LACH DIAMANT’s PCD »IC-plus« already announced as the »world`s best« chip breaker was born.
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CBN inserts DUO-Power
CBN inserts DUO-Power
Insert for turning
Jakob Lach GmbH & Co. KG
Inserts for turning
CBN inserts DUO-Power
CBN inserts with »chipbreaker«* – another innovation of LACH DIAMANT
With the development of the »chipbreaker« for the turning of hardened steels and cast iron, entirely new possibilities were opened up. This began at LACH DIAMANT already 10 years ago and led to several patents. The question „turning or grinding?“ has now another option which goes in favour of CBN turning.

With this development LACH DIAMANT draws from 35 years of experience in the manufacturing and application of polycrystalline synthetic cutting materials diamond (PCD) and CBN (PCBn). This started with their availability of PCD in 1973 respectively 1974 for CBN.

LACH DIAMANT employs 150 people with plants in Hanau and Lichtenau near Chemnitz in Germany as well as in Grand Rapids, Michigan, USA and is considered a pioneer in this type of industry.

Even the grinding and spark erosion processing of polycrystalline materials had its origin in the „think tank“ of LACH DIAMANT, as proven by the universal grinding machines according to the original spark erosion process by LACH DIAMANT.
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