Industry Activities 

Karat Industrial Corporation is a professional manufacturer & exporter of rivet tools and rivet nut tools in Taiwan since 1982 with rich experience inherited from a famous U.S. manufacturer to build up our own technology.

Now Karat has strong R&D ability and reliable production to keep presenting new products and upgrading quality, 100% designed & made in Taiwan. Karat has strict QA and efficient logistics to offer one-year warranty for Karat Brand hand tools, and to keep sufficient spare parts for fast after-sales service. Therefore, most customers of Karat are famous brands in Europe and USA for the industrial, auto repairing, professional and DIY/hobby markets.

Now Karat produces the complete line of manual operated hand rivet tools (hand riveters) and hand rivet nut tools including standard duty, medium duty and heavy duty, also containing various hand-operated type, swivel head type, long-handle lever type, lazy long type, gear type, etc. Karat also makes air hydraulic rivet tools and will present more new models in coming few years.

Karat is good at making new project for customers, and sincerely welcomes the ODM or OEM cooperation with Karat logo or private logo. Because of good reputation, more and more customers like to act as Karat distributors in these years.

Karat also makes high quality rivet nuts and blind rivets in various materials, types and packages mainly for European and U.S. markets.

Karat cares about the environmented protection and users protection, so we are presenting more eco-friendly products to cherish our only earth and users’ health as well.

Honest, respect, win-win and long term cooperation are the sales policy of Karat; quality, innovation, performance, durability and warranty are the features of Karat tools. Try Karat tools once, you will trust Karat forever!

Backed by some 30 years of expertise in heat treatment, Shun Den Iron Works Co., Ltd. has diversified into hex-key wrenches, aiming to be a world-caliber, top-end supplier of hex-key wrenches.

Driven by End-user Demand

Driven by end-user demand for high-quality hex-key wrenches, it decided to venture into the sector in 2009 after several decades of forging, die casting and stamping work, tapping such seasoned skills and know-how of heat treatment to develop high-quality hex-key wrenches.

It spent over one and half years focusing its R&D on top-end products from Germany and Japan, as well as studying users’ experience in machinery and mold maintenance, and ultimately figured out a solution for the technical dilemma of balancing structural flexibility and surface hardness, which has not been addressed in most wrenches sold in different markets.

It says that wrenches sold in Europe are moderately hard, being rated between 50 and 53 and structurally flexible but prone to wear, compared to those from Japan and Taiwan that are high-HRC-processed, hardness-rated between 56 to 62, though more easily fatigued to be more dangerous to users. To build a better product, it has applied special heat treatment to overcome the problem, hence developing its line of superb quality, professional-grade hex-key wrenches.

Highest Criteria

It claims that each batch of hex-key wrenches is sample-tested according to a full process to ensure the highest structural flexibility, lifespan and wear-resistance.