Manufacturer of diamond and CBN tools for turning, drilling, milling and grinding applications as well as sharpening machines

Jakob Lach GmbH & Co. KG

New on Amplifa

ca. 1920Founded (over 100 years)

3rd generationFamily-run

WorldwideDelivery area

About LACH DIAMANT

LACH DIAMANT is a third-generation family business and manufacturer of diamond and CBN tools. The product portfolio comprises PCD inserts, milling cutters and grinding wheels for turning, drilling, milling and grinding applications in series production. In addition to standard products, the company develops and produces custom solutions and special dimensions according to individual requirements, including for the automotive and aerospace industries as well as the wood and plastics industries. With the in-house developed sharpening machine "Dia-2200-mini", LACH DIAMANT also offers a tool regrinding service, since 2026 supported by axial angles greater than 45°. The company supplies customers worldwide and is led by Horst Lach (2nd generation) and Robert Lach (3rd generation).

Processes: Manufacture of diamond and CBN tools (PCD inserts, milling cutters, grinding wheels) for, Manufacturing of custom special solutions/individual solutions, Machine "Dia-2200-mini" – sharpening machine for service and production of diamond tools, Custom special solutions (special dimensions), Tool regrinding service (including Dia-2200-mini sharpening machines)
Materials: Diamond (PCD), CBN, Diamond
Industries: Automotive industry, Aerospace industry, Wood industry, Plastics industry, Tool and mould making, Tool/mould making (PCD machining)

01
Engineering and custom design
02
Manufacturing of diamond and CBN tools
03
Tool regrinding service

Materials & Processes

PKD

Diamond (PCD)

Cutting material for inserts and milling cutters with significantly longer tool life compared to carbide tools.

CBN

Cutting material for turning, drilling, milling and grinding applications.

Dia

Diamond

Used in grinding wheels and tools for the wood and plastics industries.

Components & Products

**Diamond tool (axial angle > 45°)**Sharpening · Wood and plastics industry

Inside the production

First trade fair stand of LACH DIAMANT, Hanover 1966

Horst Lach (2nd generation) and Robert Lach (3rd generation)

Industries

Automotive industryAerospace industryWood industryPlastics industryTool and mould makingTool/mould making (PCD machining)

Processes & technical limits

Processes	Tolerance	Max. part	Weight	Lot size	Materials
Manufacture of diamond and CBN tools (PCD inserts, milling cutters, grinding wheels) forEngineering	–	–	–	–	Diamond (PCD), CBN, Wood, Plastics
Manufacturing of custom special solutions/individual solutionsEngineering	–	–	–	–	–
Machine "Dia-2200-mini" – sharpening machine for service and production of diamond toolsTesting	–	–	–	–	Diamond

1 Anlagen & Maschinen

Machine	Manufacturer / model	Quantity	Working area	Year built	Site
Sharpening machine / EDM machine for diamond tools	LACH DIAMANT Dia-2200-mini	–	Axial angles greater than 45°	–	–

Additional services

Custom special solutions (special dimensions)Tool regrinding service (including Dia-2200-mini sharpening machines)

Reference customers

MersenSchneider Schreibgeräte GmbHTPILinea Diamant

History

ca. 1920
Foundation of the company; over 100 years of company history, celebrated with the retrospective series "100 Years of LACH DIAMANT" (2025/2026).
1966
First trade fair stand of LACH DIAMANT in Hanover.
2025
Horst Lach celebrates his 65th work anniversary.
2026
Presentation of the sharpening machine "Dia-2200-mini" with axial angles greater than 45° for service and production of diamond tools.