will these cut aluminum?

The machine can engrave aluminum as far as cutting it it would take a very long time depending on the hardness. To engrave I would set the passing depth at 0.5mm and the feed rate between 150 and 300 mm/min, spindle speed between 300 and 500 rpm. Aim a cooling fan at the work piece and keep a vacuum handy.

Can It engrave on copper?

It's possible, but I wouldn't recommend it. Engraving on metal, even one as soft as copper, would dull the bits quickly.

Why is amazon shipping from Baltimore to Kentucky and back to baltimore?

All 2 day air packages go to the hub in Kentucky first. You could ship something 2 day air to your next door neighbor and it will go to Kentucky first. Crazy, right?

Are these upcut or downcut? Can this vital piece of information be added to your product specs please?

I believe they are Burrs and neither upcut or downcut however, they have an appearance of being upcut. Although I have them, I have not used them yet.

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C08

Product ID: 122696645

Details

Cutting Diameter
3 millimeters
Cutting Length
12 millimeters
Finish Type
Nano Blue Coat
Material
Carbide
Number of Flutes
2

🔵Nano Blue Coat for ultra durability

⚙️Precision cutting diameters 0.8-3mm

🛠️Ultra-fine carbide for sharp, clean cuts

243656 ₮

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Sold byAmazon MongoliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔵 Cut sharper, last longer, and lead the pack with SainSmart precision!

CARBIDE TOUGHNESS - Crafted from ultra-fine grained carbide, these bits deliver sharp, clean cuts on everything from carbon fiber to hardwood.
NANO BLUE COATING - Advanced blue nano coating boosts wear resistance and extends tool life, keeping you ahead of the curve.
VERSATILE APPLICATION - Perfect for PCB, SMT, mold making, and precision parts—engineered for the multitasking professional.
PRECISION IN EVERY CUT - 10 sizes from 0.8mm to 3mm cover all your intricate CNC needs with unmatched accuracy.
FLAWLESS FINISH EVERY TIME - Sharp edges and 2-flute design ensure smooth milling with no glitches, giving your projects a polished, professional look.

The SainSmart Genmitsu 10Pcs Nano Blue Coat End Mill CNC Router Bits set features 10 precision-cutting diameters ranging from 0.8mm to 3mm, crafted from ultra-fine carbide with a durable nano blue coating. Designed for high wear resistance and clean, glitch-free milling, these bits excel in applications including PCB, SMT, mold making, and carbon fiber machining, making them an essential tool for professionals demanding accuracy and longevity.

Specifications

ASIN	B07P7LGQJ6
Best Sellers Rank	#40,985 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Drill Mills #37 in Spiral Router Bits
Brand Name	SainSmart
Customer Reviews	4.4 4.4 out of 5 stars (3,444)
Cut Type	Plain End
Cutting Diameter	3 millimeters
Cutting Length	12 millimeters
End Cut Type	Center
Finish Types	Nano Blue Coat
Global Trade Identification Number	04897093841353
Helix Angle	3E+1 degrees
Item Dimensions L x W	1.46"L x 0.13"W
Item Weight	0.27 g
Manufacturer	SainSmart
Material Type	Carbide
Model	70C08
Number of Cutting Edges	2
Number of Flutes	2
Number of Items	10
Part Number	101-60-70C08
Shape	Round
Size Name	0.8-3mm
Tolerance Held	Precision

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