Are these suited for wood as well?

I have been using the 1/4 and 3/8 bits for mortising in cherry wood, they are excellent at that - clean cut, not much vibration, stay sharp longer than other he's spiral bits.

will this set be able to drill my AR15 lower receiver

That's exactly what I used this set for my 80% arms lower receiver. Completed it last week with a Deltron upper and tested it at the range yesterday. Take your time and go slow and it will produce a quality part. Predrill holes with a drill bit. I did the whole process using these to finish with.

In drill press, how will they do for plunge cutting? I was under impression I need center cut end mill for boring metal, am I wrong?

Two or three flute center cutting end mill most 4 flute are not center cutting and will go a horrible job. Two flute end mills in very sharp condition best done on a larger heavy duty drill press 12 inches or more swing. The Quill arbor and bearings need to be tight with minimal slop. Drill press needs to be capable of low speed to avoid chatter. If things are optimal it "may work" any vertical mill even a mini mill will do a better job for this milling operation.

Topic shows hhs, but look under " product description" it says "carbide end mill" which is it?

the material is HSS,not carbide,product description just recommend other styles, if you need carbide milling cutter, we also have it, click the link at the bottom of the description to buy it directly

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8PCS HSS 4-Flute End Mill Set CNC Milling Bits 1/16''-1/2''

8PCS HSS 4-Flute End Mill Set CNC Milling Bits 1/16''-1/2''

Product ID: 17834266

Details

Cutting Diameter
12.7
Cutting Length
0.75 inches
Finish Type
Unfinished
Material
High Speed
Number of Flutes
4

💨4-flute design for faster chip removal

🔩M2 High Speed Steel for durability

⚙️8 precision sizes 1/16''-1/2''

JD 26.11

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Description

⚡️ Cut faster, last longer, mill smarter!

EFFORTLESS CLAMPING - Straight shank design ensures secure, wobble-free mounting on all compatible CNC machines.
PRECISION IN EVERY CUT - 8 versatile sizes cover all your milling needs from micro to macro.
SPEED MEETS SMOOTHNESS - 4-flute configuration accelerates feed rates while delivering cleaner, smoother finishes.
UNIVERSAL METAL MASTERY - Perfect for carbon steel, titanium, aluminum, and more—your all-in-one milling solution.
ENGINEERED FOR ENDURANCE - Crafted from enhanced M2 HSS, built to withstand high hardness metals with ease.

The AUTOTOOLHOME 8PCS HSS 4-Flute End Mill Set features 8 precision sizes ranging from 1/16'' to 1/2'', made from enhanced M2 high speed steel for superior toughness and wear resistance. Its straight shank design guarantees secure clamping in CNC routers and milling machines, while the 4-flute geometry optimizes chip removal and surface finish. Ideal for machining a wide range of metals including carbon steel, titanium, and aluminum, this set is engineered for professional-grade milling performance and durability.

Specifications

ASIN	B00ZZYJU2U
Best Sellers Rank	#11,463 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Drill Mills
Brand Name	AUTOTOOLHOME
Customer Reviews	4.5 out of 5 stars 4,253 Reviews
Cut Type	4 Flute
Cutting Diameter	12.7 millimeters
Cutting Length	0.75 inches
End Cut Type	Straight End Mill Cutter
Finish Type	Unfinished
Finish Types	Unfinished
Helix Angle	3E+1 degrees
Item Highlight	Straight Shank M2 Steel End Mills CNC Milling Machine Router bits for Cutting Metal Steels Wood Plastic Precise and Durable
Item Weight	6.72 ounces
Manufacturer	JYC International Trade Co., Ltd.
Material	High Speed Steel
Material Type	High Speed Steel
Model	ZH0095
Number of Cutting Edges	4
Number of Flutes	4
Number of Items	8
Part Number	ZH0095
Shape	Round
Size	0.5;0.25;0.375;0.1875;0.3125;0.125 Inch
Size Name	0.5;0.25;0.375;0.1875;0.3125;0.125 Inch
Tolerance Held	Precision
UPC	798154046462 714046583938
Unit Count	1 Count

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