Ningbo Niche Tools Co., Ltd

17/10/2026

What are CNC cutting tools?

CNC cutting tools are specialized, high-precision tools used in Computer Numerical Control (CNC) machining to remove material from a workpiece through shearing or abrasion.

Controlled by computer programs (G-code), these tools shape materials like metals, plastics, wood, and composites into precise parts with high accuracy and repeatability.

Core Types of CNC Cutting Tools
- Mills (Milling Cutters)
- Lathe/Turning Tools
- Drilling & Holemaking Tools

Key Selection Factors
Workpiece Material: Harder materials require carbide, ceramics, or specialized coatings, whereas softer materials benefit from high-rake, sharp tools.

Flute Count: Fewer flutes (2–3) allow larger chip clearance in soft materials like aluminum; more flutes (4–6+) offer greater rigidity and higher feed rates in steel and tough alloys.

Tool Geometry: Helix angles, rake angles, and corner radii impact chip evacuation, cutting forces, and surface finish.

For the details, please feel free to contact us for anything in question.

16/10/2026

What is a carbide endmill for deburring?

A carbide end mill for deburring (often called a chamfer mill, deburring cutter, or burr mill) is a solid carbide rotary cutting tool specifically designed to remove raised edges, burrs, and sharp flash left behind on workpieces during milling, drilling, or turning operations.

Key Types of Carbide Deburring End Mills
Depending on the geometry of the edge or hole being deburred, different profiles are used:
1) Chamfer Mills (Standard Deburring Mills)
2) Back-Chamfering / Undercutting Deburring Mills
3) Corner Rounding / Inner-Radius Cutters
4) Carbide Rotary Burrs

Primary Features to Consider
- Included Angle: 90° is the industry standard (producing a 45° edge break), but 60° and 120° options are common for specific countersinking or shallow chamfers.
- Flute Count:
* 2–3 Flutes: Provides larger chip clearance, making them ideal for soft materials like aluminum, brass, or plastics.
* 4+ Flutes: Provides higher rigidity and finer surface finishes on harder materials like steel, alloy steel, and stainless steel.

For more details, please feel free to check with us directly.

15/10/2026

NICHE Cartridges (High precision fine boring and roughing)

It supports high precision finishing and semifinishing applications and offers a more accurate method of adjustment on the machine spindle.

Features:
- Easy and accurate adjustment
Reduces time presetting

- Easily replaceable cartridges
If the cartridge gets damaged you just replace the cartridge and not the complete tool!

- Excellent repeatability and rigidity
A consistent preload maintains accuracy in the toughest of applications

For details, please feel free to contact us directly.

15/10/2026

What is the spiral flute machine tap?

A spiral flute machine tap is a specialized cutting tool used in machining to create internal threads, specifically designed for tapping blind holes (holes that do not go all the way through the material).

Unlike standard straight flute taps, its grooves (flutes) wrap around the tool's axis in a helical pattern, similar to a standard drill bit.

Here is how this design functions in a machining operation:

- Upward Chip Evacuation: The spiral flutes catch and pull the metal chips (swarf) up and out of the hole toward the shank of the tap as it cuts.

- Prevents Packing and Breakage: In a blind hole, chips have nowhere to exit at the bottom. By actively lifting the material out, the spiral tap prevents chips from packing tightly at the bottom of the hole, which is the primary cause of taps binding and breaking.

- High-Speed Machine Tapping: Because it clears its own chips continuously, it is ideal for use in automated CNC machines or drill presses where stopping to manually clear chips is inefficient.

For more technical details, please feel free to contact us.

14/10/2026

How to choose the right holder for the indexable milling cutters?

Choosing the right tool holder for indexable milling cutters depends heavily on your machine spindle interface, the type of milling operation, and the rigidity required for your workpiece.

Key Selection Factors:
- Spindle Interface (Machine Taper): Ensure the holder matches your machine's spindle type and size (e.g., BT, CAT, HSK, or SK tapers like BT40 or HSK-A63). High-speed applications often favor HSK for dual-contact face and taper stability.

- Milling Cutter Connection Type: Match the holder to the cutter's mounting style. Common standards include shell mill holders (for face mills with transverse slots) and arbors (for side-and-face cutters or modular threaded connections).

- Rigidity and Runout: Indexable cutters experience intermittent cutting forces. High rigidity reduces vibration and extends insert life. Hydraulic chucks or milling chucks offer higher clamping force and stability than standard collet chucks for heavy roughing.

- Reach and Clearance: Choose an overhang length (gauge length) as short as possible to minimize chatter, while still providing enough clearance to avoid collisions with the workpiece or fixture.

For more technical supports, please feel free to contact us.

13/10/2026

What are the carbide turning inserts?

A carbide turning insert is a small, replaceable cutting bit used in metalworking on a lathe or CNC machine to precisely shape, cut, and turn materials like steel, cast iron, aluminum, etc.

Key Features and Composition

- Material Composition: They are made from a hard metal composite—primarily tungsten carbide grains bonded together with a metallic binder like cobalt. Higher cobalt content increases toughness against impacts, while higher tungsten increases hardness and wear resistance.

- Indexable Design: Most modern inserts are "indexable." This means that when a cutting edge wears out, you simply loosen a retaining screw, rotate, flip, or swap the insert to use a fresh cutting edge without needing to change or regrind the tool holder setup.

- Coatings: To withstand extreme cutting temperatures, inserts are often layered with durable coatings such as titanium carbonitride (TiCN) or aluminum oxide (Al2O3) via Chemical V***r Deposition (CVD).

For more technical information and support, please feel free to contact us directly.

12/10/2026

NICHE updated and launched its Modular turning tools (NMT Series) for micro parts machining on Swiss-type lathes

The NMT modular turning tool system incorporates an advanced coupling mechanism between the modular head and tool shank, providing exceptional repeating accuracy for the cutting point.
This system achieves repeatability accuracy within the 5 μm range, minimizing downtime during tooling changeovers.

The system offers standard modular heads for a range of applications, including forward turning, back turning, grooving, thread turning, parting, and productive Y-axis turning.

Please feel free to contact us for catalog accordingly.

09/10/2026

NICHE's Milling Cutter with Negative Milling Inserts ANKX for real 90° Shoulder Milling

Inserts:
Double-Sided Rectangular Inserts with 4 Helical Cutting Edges
- ANKX09/ANKX12/ANKX16

- Grades:
NP5330 - For versatile application (P/M/K)
NC6325 - For cast iron (K)
NP3325 - For alloy steel (P)
NP9330 - For stainless steel (M)

Milling Cutters:
- Indexable milling cutters;
- Face mills;
- Face mills with extended flutes

Features:
Due to its strong construction, excellent grade combinations and unique chip deflector with positive cutting angles, this family features high durability, low cutting forces and long tool life.
It enables excellent performance and extremely high productivity.

Please feel free to contact us for more details and information.

NICHE Tools, supplying a wide range of CNC cutting tools, including carbide inserts, carbide drills, carbide end mills, milling cutters, tool holders, turning tools, grooving tools, threading tools, Capto turning units, special cutting tools, etc.

01/10/2026

A U-drill (also called an indexable insert drill) is a heavy-duty hole-making tool used primarily in CNC machining, milling machines, and lathes.

Unlike traditional solid carbide twist drills, a U-drill uses replaceable carbide inserts mounted onto a steel tool body. When the cutting edges wear out, machinists simply rotate (index) or replace the small carbide inserts rather than resharpening or replacing the entire drill bit.

Key Characteristics & Advantages
- Cost Efficiency: Replacing small carbide inserts is significantly cheaper than replacing a large solid carbide twist drill.
- High Removal Rates: Designed for aggressive feed rates and high-speed metal removal in steel, stainless steel, and cast iron.
- Versatility on Lathes: On CNC lathes, a stationary U-drill can act both as a drill and as a boring bar to expand or adjust the hole diameter by offsetting the X-axis.
- No Center Drilling Required: Can drill directly into solid material without needing a spot drill or pilot hole.

Please feel free to contact us for anything in question.

29/09/2026

Carbide thread mills? Yes, please check it with NICHE