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Resources · Technical blog

Practical carbide tooling knowledge for better buying decisions.

Compare insert geometry, grades, applications, and toolholding choices with guides written for distributors and industrial buyers.

APMT milling inserts for machining steel, stainless steel, cast iron, and aluminum materials

Latest · Milling

APMT1135 vs APMT1604 Inserts: Size Comparison and Selection Guide

APMT1135 or APMT1604: Which Insert Size Should You Use? APMT inserts are widely used in shoulder milling, face milling, and general CNC machining. Among the available sizes, APMT1135 and APMT1604 are two of the most common options found in machine shops around the world. Although both inserts share the same basic geometry, their size differences […]

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Technical archive

Browse by machining topic.

All 18 legacy technical articles are retained in the new FH resource library.

Showing 17 articles

A collection of six APMT carbide milling inserts—APMT 1604 and APMT 1135 in grey, bronze, and gold coatings—displayed in the foreground. In the background, a CNC vertical machining center is actively milling with coolant.

Milling

APMT Milling Inserts: How to Choose the Right Size and Geometry

APMT milling inserts are widely used in shoulder milling and general CNC machining. This guide explains APMT insert designations, compares APMT 1135 and APMT 1604 sizes, discusses chipbreaker geometry, and provides practical tips for selecting inserts based on material, cutter design, and machining requirements.

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Close-up shot of a high-precision ER collet chuck securely holding a solid carbide drill bit within a CNC machine spindle, optimized for stability in drilling operations.

Drilling & Toolholding

How Collet Chucks Improve Accuracy and Tool Life in CNC Machining

Learn why precision CNC shops prefer collet chucks. Discover how lower T.I.R., better clamping force, and improved high-speed stability help improve machining accuracy, consistency, and carbide tool life.

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Three high-precision ER series collets for CNC milling and tool holding with industrial studio background.

Drilling & Toolholding

Collet Chuck vs Drill Chuck in CNC Machining: Key Differences Explained

Compare collet chucks and drill chucks in CNC machining, including T.I.R., clamping force, rigidity, and milling performance. Learn which tool holder is better for precision machining, tool life, and high-speed CNC applications.

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High-precision keyless drill chuck holder with twist drill bit mounted for CNC machining.

Drilling & Toolholding

How to Choose a Drill Chuck for CNC Machining (Complete Guide + When to Upgrade)

Learn how to choose a drill chuck for CNC machining, including T.I.R., clamping force, and real limitations. Understand when a drill chuck is not enough and when to switch to a collet chuck for better accuracy and tool life.

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A technical comparison image showing MGMN grooving inserts with sharp corner edges and MRMN full radius inserts with smooth curved cutting edges, both in gold coating for CNC machining.

Grooving

MGMN vs MRMN Grooving Inserts: Key Differences for CNC Grooving and Parting

A practical comparison of MGMN and MRMN grooving inserts, covering cutting performance, applications, and material selection. Learn how to choose the right insert for CNC grooving and parting operations.

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Grooving and parting inserts during a CNC slotting operation

Grooving

How to Choose MGMN Inserts for Grooving and Parting Operations

Complete guide to MGMN inserts covering grooving and parting operations, insert sizes, chipbreaker styles, coatings, and material selection. Practical insights for CNC machining and sourcing.

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Group photo of WNMG-43 turning inserts in grades FH8625, FH9330, and showing insert shape, chipbreaker geometry, and cutting edges.

Turning

WNMG Insert: Cost-Effective Turning Solution with 6 Cutting Edges

Discover how WNMG inserts improve turning efficiency with 6 cutting edges and strong 80° geometry. Learn when to use them, how they compare to CNMG, and how to choose the right insert for steel and cast iron machining.

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Diagram showing the difference between climb milling and conventional milling feed direction and cutting force behavior in CNC machining.

Milling

Climb Milling vs Conventional Milling: Key Differences and When to Use Each

Learn the key differences between climb and conventional milling, including cutting forces, surface finish, and tool wear. Discover when to use each method in CNC machining to improve efficiency and results.

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Comparison between rough milling with heavy tool marks and finish milling with a mirror-like surface on a CNC machined part.

Milling

Finishing Milling Guide: 5 Tips for Superior Surface Finish in CNC Machining

Finishing milling guide covering finishing end mills, cutting parameters, and tool selection. Improve surface finish and machining efficiency in CNC milling.

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Anatomy of a high-performance carbide end mill showing unequal index, multiple helix, corner geometries, and ultra micro grain carbide structure.

Milling

Roughing End Mill: Complete Guide

Understand what a roughing end mill is, how it works, and how to choose the right tool. Compare roughing vs finishing end mills and explore alternative tooling options.

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3D rendering of ISO TNMG turning insert with 43 chipbreaker geometry

Turning

TNMG Insert: ISO Carbide Turning Tool with Chipbreaker

TNMG Insert guide: Understand the meaning, sizes, and applications of this turning insert. Learn how to select the best cutting edge for your metal cutting needs.

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Grooving vs parting inserts comparison showing different cutting applications

Grooving

Grooving vs Parting Inserts: Application Differences and Common Mistakes

Explore the key differences between grooving vs parting inserts. Learn how parting and grooving tools differ, common mistakes, and how choosing the right insert improves productivity and tool life.

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CNC machine performing internal and external thread turning with carbide threading inserts

Threading

Internal vs External Threading Inserts: Key Differences for CNC Lathes

Explore Internal vs External Threading Inserts for CNC lathes. Learn key differences, carbide insert selection, and how to choose the right threading insert to improve thread quality and tool life.

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Indexable drills vs solid carbide drills vs replaceable tip drills for CNC machining applications

Drilling & Toolholding

Indexable Drills vs Solid Carbide Drills: Pros, Cons, and Use Cases

Indexable drills vs solid carbide drills: pros, cons, and use cases for CNC drilling. A practical comparison of indexable insert drills and solid carbide drills in industrial machining.

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Milling insert grades used in stable milling operation on a CNC machine

Milling

Milling Insert Grades Guide: Choosing the Right Grade for CNC Machining

Milling Insert Grades Explained: Match the right milling insert grade to your machining conditions for optimal tool life. Learn about coatings & more!

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CNC lathe turning a carbide indexable insert, demonstrating turning insert geometry on a steel workpiece

Turning

Turning Insert Geometry Guide: Insert Shape, Cutting Angle & Nose Radius

Learn how turning insert geometry is defined by insert shape and code, chipbreaker and clamping form, cutting edge angle, tolerance, thickness, and nose radius to achieve stable machining.

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Cost-efficient carbide inserts designed for stable tool life and consistent machining performance

Selection

Choosing the Right Carbide Inserts: A Guide to Cost-Effective CNC Cutting

Find the perfect turning insert for your CNC cutting needs. We supply carbide inserts and cutting tools, with a wide selection of grades and shapes for optimal performance.

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