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.

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Genmitsu 40pcs End Mills CNC Router Bits, 1/8" Shank CNC Cutter Milling Carving Bit Set Including 2-Flute Flat Nose & Ball Nose, Nano Blue Coat & Titanium Coat, MC40A

Genmitsu 40pcs End Mills CNC Router Bits, 1/8" Shank CNC Cutter Milling Carving Bit Set Including 2-Flute Flat Nose & Ball Nose, Nano Blue Coat & Titanium Coat, MC40A

Product ID: 219658063

Details

Cutting Diameter
3.18
Cutting Length
17 Millimeters
Finish Type
Titanium
Number of Flutes
2
Size
MC40A (40PCS)

🔥Nano Blue & Titanium Coating for heat resistance & sharpness

⚙️0.2μm tungsten carbide steel for ultra-fine precision

🛠️40pcs set with 2-flute flat & ball nose bits, 3.175mm shank

HK$812

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Description

⚡️ Elevate Your CNC Game with Precision & Power!

VERSATILE 40 PIECE SET - Includes both 2-flute flat nose and ball nose end mills in multiple diameters (0.8-3.0mm) to tackle any project with ease.
BROAD MATERIAL COMPATIBILITY - Perfect for plastics, aluminum, circuit boards, wood, and precision parts—your all-in-one CNC companion.
SEAMLESS MACHINE INTEGRATION - Designed to fit most desktop and industrial CNC routers, including the popular Genmitsu 3018 series—just match your collet size.
NEXT LEVEL DURABILITY SHARPNESS - Nano Blue and Titanium coatings deliver superior heat resistance and maintain cutting edge sharpness for flawless finishes.
PRECISION ENGINEERED FOR EXCELLENCE - Crafted from ultra-fine 0.2μm tungsten carbide steel alloy ensuring up to 800 minutes of continuous machining without dulling.

The Genmitsu MC40A 40-piece CNC router bit set features ultra-fine 0.2μm tungsten carbide steel with advanced Nano Blue and Titanium coatings for exceptional durability and heat resistance. This versatile set includes 2-flute flat and ball nose end mills in a range of diameters, compatible with most desktop and industrial CNC machines, making it ideal for precision machining of plastics, aluminum, wood, and circuit boards.

Specifications

ASIN	B08CD99PWL
Best Sellers Rank	#17,752 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Ball Nose End Mills
Brand Name	Genmitsu
Customer Reviews	4.6 4.6 out of 5 stars (2,117)
Cut Type	Spiral Flat Nose, Ball Nose
Cutting Diameter	3.18 Millimeters
Cutting Length	17 Millimeters
End Cut Type	Ball End
Finish Types	Titanium
Global Trade Identification Number	04897093844385
Item Dimensions L x W	1.5"L x 3.18"W
Item Weight	0.2 Kilograms
Manufacturer	Genmitsu
Model	MBS-001
Number of Cutting Edges	2
Number of Flutes	2
Part Number	/
Shape	Round
Size Name	MC40A (40PCS)
Tolerance Held	Precision
Unit Count	1.0 Count

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HK$812

Duties & taxes included

In stock

Sold byAmazon Hong KongDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hong Kong.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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