Irwin 63905 Titanium Nitride C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2.89
Irwin 63905 Titanium Nitride Coated High-Speed Steel 135° Split-Point Drill Bit

Irwin 63905 Titanium Nitride Coated High-Speed Steel 135° Split-Point Drill Bit

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Model: 63911

In Stock (leaves warehouse same day if ordered before 3pm ET)

$2.89
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Irwin 63905 Titanium Nitride Coated High-Speed Steel 135° Split-Point Drill Bit

The Irwin 63905 Titanium Nitride Coated High-Speed Steel 135° Split-Point Drill Bit is engineered for demanding metal-drilling applications on the job site or in the shop, and this family is available in sizes ranging from 5/64" to 11/32" to match a wide range of hole-diameter requirements. Every size shares the same core specification: a Titanium Nitride coating, premium high-speed steel construction, a 135-Degree split-point tip, and a straight shank sized for standard drill chucks. The Titanium Nitride coating resists heat and friction, extending cutting edge life up to 6 times that of other high-speed step drill bits, while the split-point tip starts drilling immediately with less force and eliminates walking across the work surface for accurate hole placement.

Key Features

  • Size Range: Available in sizes from 5/64" to 11/32" to cover a wide range of metal-drilling hole diameters.
  • Titanium Nitride Coating: Resists heat and friction, extending cutting edge life up to 6 times that of other high-speed step drill bits.
  • Durable Construction: Made from premium high-speed steel for increased durability in repeated metal-drilling use.
  • 135-Degree Split-Point Tip: Starts drilling immediately with less force and eliminates walking across the work surface for accurate hole placement.
  • Straight Shank: Fits standard drill chucks across the size range for straightforward setup and use.
  • Jobber Bit Type: General-purpose length and geometry suited to a wide range of drilling tasks.

Technical Specifications

  • Warranty: NLW
  • Claims Needed: No
  • Country of Origin: China
  • Battery Included: No
  • Power Source: Non-Energy Using

Typical Applications

  • Drilling Through Steel and Other Ferrous Metals
  • Metalworking and Fabrication Projects
  • Professional Trade and Maintenance Work
  • General Workshop and DIY Drilling Tasks
  • Repeat-Use Applications Requiring Extended Bit Life

Why Irwin?

Irwin builds every size in this 63905 family from premium high-speed steel and applies a Titanium Nitride coating specifically to fight the heat and friction that shorten the life of standard bits, delivering cutting edge life up to 6 times longer than other high-speed step drill bits. The 135-Degree split-point tip is designed to bite in immediately and track true across the full 5/64" to 11/32" size range, reducing operator effort and preventing the tip from walking off-mark on the work surface. For professionals and serious DIYers who need metal-drilling bits that hold up to repeated use, the Irwin 63905 family combines durable materials with a purpose-built tip geometry and a straight shank for dependable, accurate performance in any size.

Manufacturer Resources

Product Specs

Warranty:
NLW
Bit Type:
Jobber
Claims Needed:
No
Individual Vs. Set (Syndigo):
INDIVIDUAL
Product Material Group:
METAL
Battery Included:
No
Power Source:
NON-ENERGY USING
list_batch:
IRW-20260923
Product Type:
Twist Drill Bit
Product Finish:
Titanium Nitride Coated
Angle:
135°
Department:
Electrical
Product Subgroup:
Drill & Driver Bits
Product Material:
High-Speed Steel
Product Group:
Power Tools & Accessories

Irwin 63911 – Frequently Asked Questions

1) What sizes do the Irwin 63905 titanium nitride drill bits come in?
Five fractional sizes are offered: 5/64", 7/64", 1/8", 11/64" and 11/32". Each size carries its own Irwin part number, so order by number rather than by the family name: 63905 is the 5/64", 63907 the 7/64", 63908 the 1/8", 63911 the 11/64" and 63922 the 11/32".
2) What does the 135 degree split point actually do differently from a standard 118 degree bit?
The 135 degree split point is a flatter, self-centering tip. It bites in as soon as it touches the work and does not skate across a smooth metal surface, so you can skip the center punch on most holes and still land the hole on your mark. A conventional 118 degree point is steeper and tends to walk on hard, flat stock until it is punched or piloted. On sheet steel and strut that difference is the whole job.
3) Are these Irwin bits made for drilling steel, or only wood and plastic?
They are built for metal. The body is premium high-speed steel and the intended work is drilling through steel and other ferrous metals, metal fabrication, and trade maintenance drilling. They will cut wood and plastic fine, but the titanium nitride coating is there to fight the heat and friction you only generate in metal.
4) Will these Irwin TiN bits fit a standard keyless drill chuck?
Yes. Every size in the 63905 family has a straight shank sized for standard drill chucks, so a keyless or keyed 3/8" or 1/2" chuck holds them with no adapter. There is no hex or SDS shank in this family, so if you need a quick-change impact driver fit, this is not the bit.
5) Do I buy these drill bits one at a time or as a set?
These are sold individually by size, not as an indexed set. Each diameter is its own item with its own Irwin number, which suits restocking a single size that gets consumed fastest on a maintenance cart rather than buying a whole index again.
6) What is a jobber length bit and is that the right length for drilling electrical panels and strut?
Jobber is the general-purpose length, the standard flute length you find in any drill index, and it is what this family uses. It gives enough reach for panel walls, strut, angle iron and sheet stock while staying stiff enough to track straight. If you need to reach deep inside an enclosure past an obstruction, a longer aircraft-length bit is the tool for that, not a jobber.
7) Is the titanium nitride coating worth it over a plain black oxide bit for repeat drilling?
For repeat holes in metal, yes. The TiN coating is applied to resist heat and friction, and Irwin rates the cutting edge life at up to 6 times that of other high-speed steel step drill bits. If you are drilling a handful of holes a month, an uncoated bit is adequate. If a crew is punching dozens of holes a day in steel, the coated edge is what keeps the bit cutting instead of burnishing.
8) Where are Irwin 63905 drill bits manufactured?
Country of origin is China. That matters for procurement teams working to a domestic-preference or Buy American requirement, since these bits would not satisfy one.
How fast can I get the Irwin 63911 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Irwin 63911 come with a warranty?
Absolutely. The Irwin 63911 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Irwin 63911?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Irwin 63911 from ZenSupply?
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