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Drill Bit HD Cobalt St 135d SplPt #40 2-3/4" YLW (1pc)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Pouch
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
Metallics HSSCN40E – Frequently Asked Questions
1) What size hole does a #40 drill bit make?
The Metallics HSSCN40E is a #40 wire gauge bit, which cuts a nominal 0.098 inch hole. Wire gauge sizing is what you use for tap and clearance work rather than fractional sizing, and #40 is the common tap-drill size for a 3-48 machine screw thread.
2) Will a cobalt drill bit go through stainless steel and hardened plate?
Cobalt is the reason to pick this one. The HSSCN40E is a heavy duty cobalt high speed steel bit, so it holds its edge at the higher temperatures you generate in stainless, strut, and hardened steel plate where a plain HSS bit dulls or burns off. Keep the speed down and the pressure steady, and use cutting fluid in stainless.
3) What does the 135 degree split point do on this bit?
A 135 degree split point self-centers, so the bit bites where you put it instead of walking across the surface, and it generally lets you skip the center punch on flat steel. The HSSCN40E carries that grind, which is the standard point geometry for drilling metal.
4) How deep can I drill with the Metallics HSSCN40E?
Overall length is 2-3/4 inches, and on a jobber-style bit of that size the flute length is a fraction of that, so plan on shallow work: sheet metal, strut, enclosure walls, device plates, and tapping holes. For deep holes or anything you have to reach into, you want a longer aircraft-length or extension bit instead.
5) Is this drill bit sold individually or in a set?
One bit per order, packed in a pouch. If you are standardizing a van or a shop drawer on #40 for 3-48 tapping, order the quantity you need rather than expecting an assortment.
6) Why is this drill bit yellow?
The yellow finish on the HSSCN40E is a size and type identifier, which matters when you are pulling a wire gauge bit out of a pouch on a ladder and need to tell #40 from the bits either side of it. It is a cobalt steel bit, not a coated carbon bit, so the cutting performance comes from the alloy rather than the surface.
How fast can I get the Metallics HSSCN40E 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 Metallics HSSCN40E come with a warranty?
Absolutely. The Metallics HSSCN40E 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 Metallics HSSCN40E?
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 Metallics HSSCN40E from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.