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High-Speed Twist Drill Bit 25/64" 5-1/8" Bright (1pc)
Manufacturer Resources
Product Specs
- Division:
- Electrical H1
- Pack Type:
- Pouch
- Sub Division:
- Electrical-E H2
- Department:
- Electrical
Metallics HSD21E – Frequently Asked Questions
1) Can I use this high-speed steel bit on concrete or masonry?
No. The HSD21E is a high-speed steel twist drill bit for metal, wood and plastic. Concrete, block and brick need a carbide-tipped masonry bit or an SDS hammer bit, which the HSS bit is not. Using it in masonry will dull the cutting edges immediately.
2) How long is the HSD21E drill bit, and will it reach through a deep box or stud?
Overall length is 5-1/8 inches on this 25/64 inch bit. Subtract the shank held in the chuck and you have a few inches of usable flute, which handles single wood studs, strut and sheet steel. For drilling through doubled framing or a deep assembly you want a longer aircraft-length or extension bit instead.
3) Is the Metallics HSD21E a bright finish or black oxide bit, and does that matter?
Bright finish, meaning plain uncoated high-speed steel. Bright HSS cuts cleanly in aluminum, brass, plastics and mild steel and is the common general-purpose choice. If you are drilling a lot of hard or abrasive steel dry, a black oxide or coated bit holds up better to the heat.
4) How many drill bits come in a Metallics HSD21E pack?
One bit per pack, supplied in a pouch. If you are stocking a van or a shop crib and want spares of 25/64 inch, order the quantity you need rather than expecting a multi-pack.
How fast can I get the Metallics HSD21E 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 HSD21E come with a warranty?
Absolutely. The Metallics HSD21E 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 HSD21E?
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 HSD21E 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.