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 Cutter Set, Straight Shank High Speed Steel Milling Bits 1/16" to 1/2" for CNC Router, Milling Machine, Metal, Wood, Plastic

Product ID: 17834266

Details

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

🔥Enhanced M2 HSS for high hardness & durability

⚙️4-flute design for faster, cleaner cuts

🛠️8 versatile sizes from 1/16" to 1/2"

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$58.55

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Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡️ Elevate Your Milling Game with Precision & Speed!

EFFORTLESS SETUP - Straight shank design ensures secure, quick clamping in CNC routers, milling machines, and drill presses—maximize your workflow efficiency.
PRECISION MEETS POWER - Engineered with enhanced M2 high speed steel, these cutters deliver stable, wear-resistant performance for metals with hardness up to HRC 30+.
VERSATILITY IN EVERY BIT - 8 essential sizes cover all your milling needs—from delicate slotting to robust profiling on metal, wood, plastic, and more.
CLEAN CUTS SMOOTH FINISHES - 4-flute configuration combined with a u-shaped groove reduces cutting resistance and improves chip removal for flawless surface quality.
BUILT FOR THE MODERN WORKSHOP - Durable, sharp, and reliable—this set is your go-to for light-duty precision machining, saving time and boosting productivity.

This 8-piece HSS 4-flute end mill cutter set features enhanced M2 high speed steel for superior toughness and wear resistance. With sizes ranging from 1/16" to 1/2", the straight shank design ensures secure clamping in CNC routers and milling machines. Ideal for milling metals, wood, and plastics, its 4-flute design and u-shaped groove optimize chip removal and surface finish, making it perfect for professional-grade light-duty machining tasks.

Specifications

ASIN	B00ZZYJU2U
Best Sellers Rank	#10,589 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Drill Mills
Brand Name	AUTOTOOLHOME
Customer Reviews	4.5 4.5 out of 5 stars (4,220)
Cut Type	4 Flute
Cutting Diameter	12.7 Millimeters
Cutting Length	0.75 Inches
End Cut Type	Straight End Mill Cutter
Finish Types	Unfinished
Helix Angle	3E+1 Degrees
Item Weight	0.42 Pounds
Manufacturer	JYC International Trade Co., Ltd.
Material Type	High Speed Steel
Model	ZH0095
Number of Cutting Edges	4
Number of Flutes	4
Part Number	ZH0095
Shape	Round
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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