NEIKO 10194A Titanium Step Drill Bit, High-Speed Alloy-Steel Bit, Hole Expander for Wood and Metal, 10 Step Sizes from 1/4 Inch to 1 3/8 Inches

NEIKO 10194A Titanium Step Drill Bit, High-Speed Alloy-Steel Bit, Hole Expander for Wood and Metal, 10 Step Sizes from 1/4 Inch to 1 3/8 Inches

Q: Do these hold up to heavy use on stainless steel?

Sadly to say that it does not hold up to stainless steel. I am an Exterior Electrician and ordered a bunch of these for my guys to use out in the field. It did not work on our Exterior panels nor on our Transformers the first, second or third time. The bits gave out and dulled as soon as they started drilling. We ended up purchasing high end step-bits we've ordered before and they worked well. I did a trial with these bits and ended up short on the winning end.

Q: Drilling a 1 1/4" hole in a stainless steel sink? Any suggestions?

The best and cleanest option to punch a hole in a stainless sink is with a hydraulic Greenlee hole punch. They are expensive to own. You might want to see if you can rent a set.

Q: What size is the shank

Hi Randy,The 3/16"-1/2"(six step drill) and the 1/8"-1/2"(thirteen step drill) both have 1/4" shank. The 1/4"-3/4"(nine step drill) has a 3/8" shank. Hope this will help you?

Q: does this drill bit fits into the Black and Decker 3/8" 5-amp Variable Speed Drill with Keyless Chuck, DR260B

The shaft is 3/8 on the tool but, it is tapered so the drill chuck jaws can bite down so it will hold on to it, I have used it in my 3/8, 1/2 and my 1/2 mill, with no problem, I hope this helps you!

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Product ID: 339636696

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Details

Material
Titanium Alloy
Cutting diameter
6.35
Finish type
Titanium
Shank type
3-Flat
Cutting angle string
135 Degrees

🔥Titanium nitride coating for extreme durability

⏱️135° split-point tip for faster, cleaner drilling

⚙️10-step sizes from 1/4" to 1 3/8"

Frequently Bought Together

NEIKO 10194A Titanium Step Drill Bit, High-Speed Alloy-Steel Bit, Hole Expander for Wood and Metal, 10 Step Sizes from 1/4 Inch to 1 3/8 Inches

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Description

⚡ Drill Like a Pro, Finish Like a Boss

BUILT TO LAST - Titanium nitride coating paired with #4241 high-speed alloy steel ensures unmatched wear resistance and longevity.
ONE BIT TEN SIZES - Seamlessly switch between 10 hole diameters without swapping tools—efficiency redefined.
PRECISION MEETS POWER - 135° split-point tip and 2-flute spiral design deliver clean, burr-free holes in metal and wood every time.
UNIVERSAL COMPATIBILITY - Fits most pistol drills and drill presses—your go-to bit for any project, anywhere.
WORK SMARTER NOT HARDER - Expand or create holes effortlessly with a single, heavy-duty step drill bit designed for professionals who demand speed and reliability.

The NEIKO 10194A Titanium Step Drill Bit is a high-performance, multi-size hole expander crafted from #4241 high-speed alloy steel with a titanium nitride finish. Featuring 10 engraved step sizes from 1/4" to 1 3/8", a 135° split-point tip, and a 2-flute spiral design, it delivers fast, clean drilling in wood and metal. Compatible with most power drills, this durable bit is engineered for professionals seeking precision, versatility, and long-lasting performance.

Specifications

Manufacturer	Ridgerock Tools Inc.
Part number	10194A
Item Weight	141 g
Product Dimensions	15.49 x 7.37 x 4.06 cm; 140.61 g
Item model number	10194A
Size	Straight
Color	Titanium
Style	Tri-Flat Shank
Finish	Titanium Nitride
Material	Titanium, High-Speed Alloy Steel
Pattern	1/4 to 1-3/8"
Item Package Quantity	1
Number Of Pieces	1
Measurement System	Imperial
Included components	Titanium Step Drill Bit Set
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Do these hold up to heavy use on stainless steel?

Drilling a 1 1/4" hole in a stainless steel sink? Any suggestions?

What size is the shank

does this drill bit fits into the Black and Decker 3/8" 5-amp Variable Speed Drill with Keyless Chuck, DR260B

Common Questions

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