Is the flat shank on all bits?

The shank is round for the bits sized 1/16” to 1/8”. For bits sized 13/64” to 1/2”, they have the three flat shank.

Will these drill thru stainless?

YES. The DWA1181 DEWALT 21-pack black oxide twist drill bit set is ideal for general-purpose drilling materials like metal. It’s no secret that stainless steel is in fact a metal. I’ve used the 9/16” version (not included in this set, but exact same parabolic flute 31 degree helix design) to drill perfect holes in very hard 1/4” thick stainless steel. Use a drill press, not a hand held drill, go slow and use a good lubricant like Anchor. The bit cuts very smoothly and the resulting hole is smooth and shiny inside. Just my 2 cents.

Are these universal? Do they fit most drills?

Yes, the largest drill bit shank in the DWA1181 is a 1/2".

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DEWALT Drill Bit Set, 21 Pc High Speed Steel DEWALT Bits, Black and Gold Oxide Coated, 135 Degree Split Point, 31 Degree Helix (DWA1181)

DEWALT Drill Bit Set, 21 Pc High Speed Steel DEWALT Bits, Black and Gold Oxide Coated, 135 Degree Split Point, 31 Degree Helix (DWA1181)

Product ID: 314046508

Details

Brand
DEWALT
Cutting Angle String
135 degrees
Finish Type
Brushed
Material
High Speed
Shank Type
Straight

🎯135° split point for accurate, no-walk drilling

⚙️21 precision bits for versatile drilling

🛡️Black oxide coating for corrosion resistance

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Description

🔩 Drill like a pro, last like a legend.

PRECISION ENGINEERING - 135° split-point tips ensure instant bite and prevent walking on tough surfaces.
VERSATILE 21 PIECE SET - Covers everything from metal to hardwood with precision sizes for every project.
OPTIMIZED CHIP EJECTION - Parabolic flute design accelerates debris removal, keeping your workflow smooth and efficient.
DEEP HOLE DRILLING MASTERY - 31° helix angle balances aggressiveness for clean, deep holes without overheating.
DURABILITY MEETS PERFORMANCE - Black oxide coating resists rust and wear, extending bit life for relentless productivity.

The DEWALT 21-piece High Speed Steel drill bit set features black oxide coating for corrosion resistance, 135° split-point tips for precise starts, and a parabolic flute design for efficient chip removal. Ideal for drilling metal, wood, PVC, and fiberglass, this set combines durability and versatility to meet the demands of professional and DIY projects alike.

Specifications

ASIN	B079VJMH6T
Best Sellers Rank	#2,346 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Jobber Drill Bits
Brand	DEWALT
Brand Name	DEWALT
Customer Reviews	4.8 out of 5 stars 5,939 Reviews
Cutting Angle String	135 degrees
Finish Type	Brushed
Finish Types	Brushed
Global Trade Identification Number	00885911426749
Included Components	(1) 21 Piece drill bit set
Item Dimensions	8.75 x 1.38 x 8.75 inches
Item Type Name	Drill Bits
Item Weight	16 ounces
Item dimensions L x W x H	8.75 x 1.38 x 8.75 inches
Manufacturer	DEWALT
Material	High Speed Steel (HSS)
Material Type	High Speed Steel (HSS)
Model	DWA1181
Number of Flutes	2
Number of Packs	21
Number of Pieces	1
Part Number	DWA1181
Point Style	Split Point
Set Name	21-Piece
Shank Type	Straight
Surface Recommendation	Fiberglass,Metal,Plastic,Pvc,Wood
Tool Flute Type	Parabolic
UPC	885911426749

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B/.95

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered 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 Panama.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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