what material can each type bit be used with? There's no documentation for a beginner user.

I have successfully tested these on aluminum, wood, acrylic, brass, and copper

are the spiral bits spiralup or spiraldown? thanks.

By the picture they look like they are UP CUT bits.

Can I use 1/4" shanks in the machine?

I haven't personally used a 1/4" shank, but I have seen people who claim this is possible.

Genmitsu End Mill Set with a Total of 40 Cnc Router Bits,3.175mm (1/8in) Shaft, Cutter with 2 Grooves, Flat and Ball Head Mills

Genmitsu End Mill Set with a Total of 40 Cnc Router Bits,3.175mm (1/8in) Shaft, Cutter with 2 Grooves, Flat and Ball Head Mills

Product ID: 358625356

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Details

Cutting diameter
3.18
Cutting length
17 Millimeters
Finish type
Nano Blue
Material
Carbide
Number of flutes
2

🔵Nano blue/titanium coating

⏱️800 min continuous machining

⚙️40 precision bits

Description

🔧 Elevate your CNC game with precision that lasts and versatility that inspires!

NEXT LEVEL DURABILITY - Ultra-fine 0.2mm tungsten steel with nano blue/titanium coating ensures razor-sharp edges and heat resistance.
SEAMLESS COMPATIBILITY - Fits most desktop and industrial CNC machines with a 3.175mm (1/8in) shaft for effortless integration.
READY TO USE PROTECTION - Secure packaging with protective covers guarantees your bits arrive pristine and ready to perform.
ULTIMATE PRECISION ARSENAL - 40 CNC router bits covering 0.8-3.0mm cutting diameters for every detailed project.
VERSATILE MATERIAL MASTERY - Perfect for plastics, aluminum, PCBs, wood, and precision parts—your all-in-one machining solution.

The Genmitsu End Mill Set includes 40 high-quality CNC router bits made from ultra-fine tungsten steel with advanced nano blue and titanium coatings. Designed for durability and sharpness, these bits support continuous machining for up to 800 minutes. Compatible with most CNC machines featuring a 3.175mm shaft, this set covers a wide range of cutting diameters (0.8-3.0mm) and is ideal for materials like plastic, aluminum, PCBs, and wood. Packaged securely to ensure safe delivery, it’s a professional-grade toolkit essential for precision machining.

Specifications

ASIN	B08CD99PWL
ASIN	B08CD99PWL
Best Sellers Rank	#22,697 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in End Mills
Brand Name	Genmitsu
Customer Reviews	4.5 4.5 out of 5 stars (1,983)
Customer reviews	4.5 4.5 out of 5 stars (1,983)
Cut Type	Center Cut, Non-Center Cut
Cutting Diameter	3.18 Millimeters
Cutting Length	17 Millimeters
Date First Available	3 August 2020
End Cut Type	Flat head, ball head
Finish Types	Nano Blue Coating/Titanium Coating
Global Trade Identification Number	04897093844385
Item Weight	0.2 Kilograms
Item model number	MBS-001
Manufacturer	Genmitsu
Manufacturer	Genmitsu
Material Type	Carbide
Number of Cutting Edges	2
Number of Flutes	2
Product Dimensions	3.8 x 8.06 x 0.1 cm; 200 g
Shape	Round
Size Name	MC40A (40PCS)
Tolerance Held	Precisão
Unit Count	1 Count

Reviews

F**A

Muy buena calidad, una excelente selección para tener de todo en tu taller

19.12.2024

B**S

Order was expected with quality milling bits

23.01.2026

A**S

Good value

11.03.2026

A**E

Fast delivery, everything fine as expected

5.03.2026

M**D

شكرا البائع

11.08.2024

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