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Drill Bit HD Cobalt St 135d SplPt #31 2-3/4" YLW (1pc)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Pouch
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
Metallics HSSCN31E – Frequently Asked Questions
1) What size hole does a #31 drill bit make, and what is it used for in electrical work?
The Metallics HSSCN31E is a wire gauge #31 bit, which cuts a hole of about 0.120 inch. Wire gauge sizes like this are specified where a hole has to match a fastener or tap drill size rather than a fractional dimension, so you drill to the gauge number called out on the print instead of guessing a fractional equivalent. Overall length is 2-3/4 inches.
2) Will a cobalt drill bit go through stainless steel and strut, or do I need carbide?
Cobalt is the right call for stainless, hardened strut, and strut channel nuts where plain high speed steel burns up. The HSSCN31E is a heavy duty cobalt bit, which holds its edge at the higher temperatures you get drilling work-hardening metals. Carbide only becomes necessary for masonry or for abrasive non-metals, which this bit is not intended for.
3) What does the 135 degree split point on this bit actually do for me?
A 135 degree split point starts drilling without a center punch and resists walking on a curved or slick surface, which is what you want when you are drilling an enclosure face, a strut channel, or a piece of stainless on a ladder. The HSSCN31E is ground with a 135 degree split point. A standard 118 degree point needs a punch mark to stay put.
4) Does this Metallics bit have a straight shank that fits a standard keyed or keyless chuck?
Straight shank, so it chucks into any standard keyed or keyless drill chuck. It is not a hex shank bit and will not snap into a quick-change impact driver collet without a chuck adapter.
5) How many drill bits come in the Metallics HSSCN31E pack?
One bit per pack, supplied in a pouch. If you are stocking a van or a maintenance crib and want spares of this size on hand, order the quantity you need as individual pieces rather than expecting a multi-bit set.
6) Why is this drill bit yellow instead of bright or black oxide?
The yellow finish on the HSSCN31E is a visibility and identification coating, which makes a small wire gauge bit easier to find in a pouch or on a jobsite floor. It is not a surface treatment that changes the cutting material; the cutting performance comes from the cobalt high speed steel body.
How fast can I get the Metallics HSSCN31E 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 HSSCN31E come with a warranty?
Absolutely. The Metallics HSSCN31E 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 HSSCN31E?
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 HSSCN31E from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
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