NEWS_NEWS_Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd

09-04 

GREWIN GHS Mold-Specific End Mill: Engineered for Semi-Finishing and Finishing of Hardened Mold Steels

Grewin Tools is a leading manufacturer and supplier of precision CNC tooling and metalworking solutions. With over 20 years of experience, we offer a comprehensive range of carbide products including GHS Mold-Specific End Mills, solid carbide end mills, CNC inserts, and tool holding systems.

08-28 

GREWIN GJB Mold-Specific End Mill: Engineered for High-Efficiency Roughing on Cast Iron and Steel

In the demanding world of CNC machining and mold manufacturing, high-efficiency roughing operations require tools that can withstand heavy cutting forces while maintaining stability and delivering consistent performance. When working with cast iron and various steel types under HRC 48°, the challenges of vibration, chip evacuation, and edge wear become critical factors that directly impact productivity and part quality. The GREWIN GJB Mold-Specific End Mill is engineered specifically for these demanding conditions. Featuring unequal indexing, variable helix, and large U-type flutes, the GJB Mold-Specific End Mill delivers excellent anti-vibration performance and exceptionally smooth chip evacuation. A C-type chamfer protects the cutting edge from chipping—a common failure mode in roughing operations . With a newly upgraded substrate material and proprietary composite coating, the GREWIN GJB Mold-Specific End Mill offers superior wear resistance, enhanced edge strength, and consistent dimensional accuracy across production batches

08-13 

GREWIN GWS Mold-Specific End Mill: Proven Performance for Roughing and Semi-Finishing of Steel

In the competitive world of CNC machining and mold manufacturing, the roughing and semi-finishing stages are critical to overall productivity and final part quality. Selecting the right tool for demanding operations on materials like 45# steel and 40CrMo can significantly impact tool life, surface finish, and machining efficiency. The GREWIN GWS Mold-Specific End Mill is engineered specifically for this challenge. Designed for HRC 30°–40° applications, the GWS Mold-Specific End Mill combines a premium GW10 carbide substrate with an advanced CrAlN coating to deliver superior wear resistance, cutting stability, and exceptional surface quality. In this article, we will examine the technological foundation, real-world performance data, and practical advantages that make the GREWIN GWS Mold-Specific End Mill a reliable choice for production environments.

08-07 

GREWIN Mold-Specific End Mills-GHD Series: Redefining High-Hardness Finishing with Precision and Value

When it comes to high-precision finishing of hardened mold steels, the GREWIN Mold-Specific End Mills-GHD Series represents a breakthrough in performance and cost-effectiveness. Designed to compete directly with established Japanese brands like OSG and Hitachi, the GREWIN Mold-Specific End Mills-GHD Series delivers exceptional cutting stability, precision, and durability. The GREWIN Mold-Specific End Mills-GHD Series is engineered for continuous 8-hour machining of HRC55°–65° materials, making it an ideal choice for demanding mold and die applications. By combining 0.2μm ultra-fine grain WC substrate with advanced Japanese PVD coating technology, the GREWIN Mold-Specific End Mills-GHD Series offers a compelling alternative to premium imported tools without compromising on quality or performance. Whether you are finishing large heat-treated molds or working with high-hardness steels like SKD11, the GREWIN Mold-Specific End Mills-GHD Series is built to deliver reliable, long-lasting results.

07-31 

GREWIN Mold-Specific End Mills: Precision Engineered for Every Stage of Mold Manufacturing

07-24 

GREWIN 753 Powder Metallurgy Drill: Engineered for Deep‑Hole Accuracy, Smooth Chip Flow & Extended Tool Life

In the challenging world of CNC machining, deep-hole drilling remains one of the most demanding operations, requiring tools that combine high wear resistance, excellent chip evacuation, and superior cutting stability. The GREWIN 753 Powder Metallurgy Drill rises to this challenge, offering a comprehensive solution that delivers precision and reliability across a wide range of workpiece materials. Engineered from premium powder metallurgy high-speed steel (HSS-PM), the GREWIN 753 Powder Metallurgy Drill offers exceptional wear resistance and toughness that surpass conventional HSS tools, particularly in demanding applications involving stainless steel, titanium alloys, and pre-hardened mold steels. The GREWIN 753 Powder Metallurgy Drill represents a strategic alternative to established brands such as NACHI, GUHRING, and OSG, delivering comparable performance at a significantly more competitive price point.

07-16 

One End Mill. Countless Materials. EM High Performance General Purpose End Mills.

In today's diverse CNC machining environment, manufacturers face an ever-expanding range of workpiece materials—from carbon steel and alloy steel to stainless steel, cast iron, titanium alloys, and heat-resistant alloys. The traditional approach of selecting a different End Mill for each material is no longer practical in terms of cost, inventory, or efficiency. The EM High Performance General Purpose End Mills from GrewinTools offer a comprehensive solution designed to handle this wide material spectrum with exceptional versatility and reliability. Engineered with a special cutting edge design that balances strength and sharpness, a nano bronze coating for enhanced wear recognition, and advanced post-treatment technology for superior substrate bonding, these End Mills deliver low cutting forces, reduced friction, and superior surface quality across multiple applications. Whether you are machining thin-walled parts, working with large overhang setups, or tackling challenging corner geometries, the EM High Performance General Purpose End Mills provide the stability and performance needed for modern production environments.

07-10 

GREWIN P3200 Finishing Ball-Nose End Mill Insert: Redefining Mold Finishing with Universal Applicability

07-03 

GREWIN HSSE Cobalt Machine Taps: Engineered for Stainless Steel Work Hardening and High-Volume Production Tapping

In modern CNC machining and high-volume metalworking production, tapping remains one of the most demanding operations. The challenges are amplified when the workpiece material is stainless steel, known for its work hardening properties, toughness, and poor thermal conductivity—all of which place exceptionally high demands on cutting tools . The GREWIN HSSE Machine Taps are designed to meet these challenges head-on, combining a premium cobalt-enriched substrate with advanced coating technology to deliver reliable performance in production environments.

06-25 

GREWIN General Purpose End Mills: The Versatile Solution for Stable Machining in Challenging Conditions

In the world of CNC machining and metalworking, the ability to handle multiple materials with a single reliable tool is a significant competitive advantage. Machine shops frequently face challenges such as brand complexity, model confusion, and high tooling costs, especially when machining a diverse range of workpieces . This is where the GREWIN General Purpose End Mills come into their own. Engineered for versatility and superior performance, these End Mills are designed to tackle a wide spectrum of materials—from cast iron and carbon steel to pre-hardened and hardened steel up to HRC55. What truly sets the GREWIN General Purpose End Mills apart is their exceptional stability under weak rigidity conditions, such as when machining thin-walled parts, navigating part corners, or working with large overhang setups . In this article, we will delve into the key technologies, material coverage, and performance characteristics that make the GREWIN General Purpose End Mills the go-to choice for professionals seeking stable machining and superior surface finish.