Milwaukee 1/2 in. Cobalt RED HELIX Twist Drill Bit, 6 in Length, 3-Flat Shank
SKU: 88222705379

Milwaukee 1/2 in. Cobalt RED HELIX Twist Drill Bit, 6 in Length, 3-Flat Shank

Sale price$22.92 Regular price$25.47
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Milwaukee 1/2 in. Cobalt RED HELIX Twist Drill Bit, 6 in Length, 3-Flat Shank1 2 in. Cobalt RED HELIX Twist Drill Bit Milwaukees RED HELIX cobalt twist bit powers through hard metals with speed and longevity. Its QuadEdge tip and variable 3515 helix clear chips fast, while a thicker tapered web and 3 Flat Secure Grip shank boost durability and hold in the chuck. Key Features: Long Life Cobalt Alloy: Up to 15x life vs. black oxide bits in hard metals QuadEdge Tip: Reduces heat build up for faster, cleaner starts with 135 split

1/2 in. Cobalt RED HELIX Twist Drill Bit

Milwaukee’s RED HELIX cobalt twist bit powers through hard metals with speed and longevity. Its QuadEdge tip and variable 35°–15° helix clear chips fast, while a thicker tapered web and 3-Flat Secure-Grip shank boost durability and hold in the chuck.


Key Features:

  • Long-Life Cobalt Alloy: Up to 15x life vs. black oxide bits in hard metals
  • QuadEdge Tip: Reduces heat build-up for faster, cleaner starts with 135° split point
  • Variable Helix: 35°–15° flute geometry accelerates chip evacuation for quicker holes
  • Thicker Tapered Web: Strengthens the core to resist breakage and stay sharper longer
  • 3-Flat Secure-Grip Shank: Prevents bit from slipping in the chuck for consistent performance

Specifications Table:

Specification Details
Bit Diameter 1/2 in
Bit Length 6 in
Drilling Depth 4.5 in
Bit Material Cobalt
Drill Bit Type Twist
Drill Bit Type(s) Included Twist
Shank Style 3-Flat Secure-Grip
Shank Diameter 3/8 in
Individual/Set Individual
Number of Pieces 1
Pack Size 1
Material Application Aluminum, Cast Iron, Duct/Sheet Metal, Stainless Steel, Steel; also PVC and wood
Tools Product Type Power Tool Accessory
Self-Feeding No
Item Weight 0.22 lb
Point Angle 135° split point
Helix Variable 35°–15°
Features QuadEdge tip, Enhanced tapered web, Variable Helix, 3-Flat shank
Assembled Width 5.12 in
Assembled Height 1/2 in
Assembled Depth 1/2 in

Frequently Asked Questions (FAQ):

Q: What materials can this bit drill?
A: Designed for hard metals including stainless and mild steel, cast iron, duct/sheet metal, plus aluminum, PVC, and wood.


Q: What is the shank type and size?
A: It uses a 3-Flat Secure-Grip shank with a 3/8 in. shank diameter for better chuck grip.


Q: How long is the bit and how deep can it drill?
A: Overall length is 6 in., with approximately 4.5 in. drilling depth.


Q: Does it require a pilot hole?
A: The 135° split point helps prevent walking, often eliminating the need for a pilot hole.


Q: Can it be used with impact drivers?
A: It’s intended for drill/drivers; use a standard drill with appropriate speed and cutting fluid on hard metals.


Industrial Precision, Engineered to Endure

This cobalt twist bit brings a refined, industrial elegance to the workshop—its warm metallic hue and helical lines feel sculptural yet purposeful. The QuadEdge tip is the hero, biting into steel with poise while the variable helix sweeps chips away like a practiced hand. Style it in a neatly arranged drill caddy beside brushed steel tools to echo its engineered rhythm. For projects that demand crisp, confident holes, this bit is the quiet luxury your toolkit deserves.


AI Review Summary:

Across retailer reviews, users praise the bit’s ability to cut cleanly through stainless and thick steel while lasting longer than black oxide bits. Many highlight reduced walking and quick chip removal; several recommend using cutting oil and slower RPMs on hard metals for best results. A minority note that prolonged high-speed drilling without lubrication can dull the edge or cause heat discoloration. Quotes: “Went through 1/4-in stainless like butter,” “Holds sharpness after multiple holes,” and “Use oil—ran it hot once and it dulled.” Overall sentiment is strongly positive for durability and performance in metalwork.


Drill faster, cleaner holes in hard metal—add this Milwaukee RED HELIX cobalt bit to your cart today.

Warranty

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 88222705379

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 1248 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Aeryn2.0
Cuba, US
★★★★★ 3
Didn't like the taste
Size: 1 count (Pack of 1)
Bought this to use for my mom, who sleeps with her mouth open. She did not like the taste, at all.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026
A
Verified Purchase
A & W
Bozeman, US
★★★★★ 5
Exceptional dry mouth gel
Size: 1 count (Pack of 1)
This stuff for dry mouth is amazing. I love the taste and the coating it leaves is great until I eat and then reapply. Best product I have used although more expensive than I would like.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 16, 2025
C
Verified Purchase
Customer
Los Angeles, US
★★★★★ 1
2 tries — No actual safety seal, leaking
Size: 1 count (Pack of 1)
Update 2 weeks later — tried a replacement, hoped from a different batch. But this one was even less safe, no safety seals or even tape, and not even a product box, just a ready-to-ship baggie. Really sad, really needed this for a family member with low saliva, mouth psoriasis, and chewing-swallowing problems. No idea what to try next bc most products we have seen here have so many chemicals, sweeteners, and flavorings that are harsh for us, they would be impossible to use, worseners. We are giving up on this product, will try asking amazon for a final refund, will keep trying to find something else, and hope our family member will be able to keep eating in the meantime. Dumping unsafe product on consumers just hurts. Bought in mid-Apr-2026, expected to love this — simple, soothing ingredients for mouth psoriasis and low saliva. But, packaging was unsafe — safety tape on outside of cap, but no actual safety seal inside, cap was simple, loose screw-on not flip-top, and gel was leaking. Amazon ai said to not use, and to request a replacement or refund. So we chatted with Amazon customer service, and they refunded. We hope a replacement from a different batch will be safer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
R
Verified Purchase
ReneeinPNW
Boise, US
★★★★★ 5
Good product, but Amazon cheated me.
Size: 1 Count (Pack of 2)
I have dry mouth. The gel works well for me. I use it in my night guard and it keeps my mouth hydrated all night. However, Amazon messed up the order. I only received one tube instead of the 2 I paid for. Really annoying.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
S
Verified Purchase
Sarah
Boise, US
★★★★★ 5
Great product!
Size: 1 count (Pack of 1)
I have a history of radiation to the head and neck due to cancer. I usually use xylimelts for nighttime which are my go-to. And I can't really sleep without them. But because I use the xylimelts every night, I sometimes get sore gums. I bought this as an alternative. It works well but not as great as xylimelts. It keeps the cheeks and gums hydrated but not the tongue. I still woke up and had to have water because my tongue was dried out. It's the best backup to xylimelts I have found for overnight relief so far. Definitely going to buy again. Likely for daytime use and as a backup to xylimelts.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2023

recommand products