Minerallac Tungsten/Carbide Ma...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$6.56
Minerallac Tungsten/Carbide Masonry Drill Bit, Straight Shank, 1/4"

Minerallac Tungsten/Carbide Masonry Drill Bit, Straight Shank, 1/4"

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Model: 59906

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

$6.56
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Minerallac 1/4" x 6" Tungsten Carbide Masonry Drill Bit with Straight Shank for Rotary Applications

Professional carbide masonry drilling for concrete, brick, and stone applications

The Minerallac tungsten carbide masonry drill bit delivers reliable performance for drilling concrete, brick, stone, and other masonry materials. Featuring a 1/4" diameter with 6" overall length and straight shank design, this rotary drill bit provides professional-grade drilling capability. The tungsten carbide point construction ensures durability and extended service life, while the black oxide finish with gold head provides corrosion resistance and easy identification.

Professional Features & Benefits

  • Tungsten Carbide Point: Delivers superior hardness and wear resistance for extended drilling life in demanding masonry applications
  • 1/4" Diameter x 6" Length: Provides optimal size for common masonry drilling tasks with sufficient depth capacity
  • Straight Shank Design: Ensures secure grip and precise drilling in portable rotary drills and drill presses up to 1000 RPM
  • Black Oxide with Gold Head Finish: Offers corrosion protection and easy visual identification during use
  • Steel Construction: Provides strong, durable shaft material that withstands drilling forces and torque
  • Rotary Application Optimized: Specifically designed for rotary drilling motion, ensuring efficient material removal

Technical Specifications

  • Country Of Origin: Taiwan
  • Drill Point: 4-Jan
  • Number Of Pieces: 1
  • Overall Length: 6
  • Point Type: Tungsten Carbide
  • Product Finish: Black Oxide, Gold Head
  • Product Material: Steel
  • Product Type: Rotary Only Carbide Drill Bit
  • Shank Diameter: 4-Jan

Installation & Operation

  1. Mount the drill bit securely in the chuck of a compatible rotary drill or drill press rated for masonry applications.
  2. Set drill speed to appropriate RPM for masonry drilling, not exceeding 1000 RPM maximum rating.
  3. Mark drilling location and ensure proper workpiece support and stability before beginning operation.
  4. Apply steady, controlled pressure while drilling, allowing the carbide point to cut efficiently through masonry material.
  5. Clear debris periodically during drilling to maintain cutting efficiency and prevent overheating.
  6. Complete drilling operation and allow bit to cool before handling or storage.

Professional Applications

  • Residential masonry and concrete drilling projects
  • Commercial construction and renovation work
  • Professional contractor and tradesman applications
  • Maintenance and repair operations
  • Industrial facility installations
  • Electrical and plumbing rough-in work

Why Choose Minerallac Quality?

Minerallac delivers professional-grade drilling tools engineered for reliable performance in demanding applications. The tungsten carbide construction and black oxide finish ensure long-lasting durability, while the precision manufacturing provides consistent drilling results. Trust Minerallac for professional masonry drilling solutions that meet the demands of contractors and tradesmen.

Manufacturer Resources

Product Specs

Number Of Pieces:
1
Product Type:
Masonry Drill Bit
Product Finish:
Black Oxide, Gold Head
Drill Point:
4-Jan
Product Material:
Steel
Shank Diameter:
4-Jan
Point Type:
Tungsten Carbide
Department:
Electrical
Product Subgroup:
Drill & Driver Bits
Product Group:
Power Tools & Accessories

Minerallac 59906 – Frequently Asked Questions

1) Can I use the Minerallac carbide masonry bit in a hammer drill or an SDS rotary hammer?
No. The Minerallac tungsten carbide masonry bit is a rotary-only bit with a straight shank, meant for portable rotary drills and drill presses at speeds up to 1000 RPM. The straight shank will not lock into an SDS-Plus or SDS-Max chuck, and hammer action will beat up a rotary-only carbide tip. If you are setting anchors in cured structural concrete all day, use an SDS hammer bit instead; this bit is for brick, block, stone, and lighter concrete work with a standard three-jaw chuck.
2) Will a 1/4 inch bit chuck into my cordless drill?
Yes. The shank on the Minerallac masonry bit is 1/4 inch and straight, so it seats in any standard 3/8 inch or 1/2 inch keyless or keyed three-jaw chuck without an adapter. No reduced shank, no hex, no quick-change collar needed.
3) What materials will the Minerallac tungsten carbide bit actually drill?
Concrete, brick, stone, and similar masonry. The cutting tip is brazed tungsten carbide on a steel shaft, which is what lets it cut abrasive mineral material instead of just burning up the way an HSS twist bit does. It is not a wood or metal bit, and the geometry is not intended for tile or glass.
4) What RPM should I run a 1/4 inch carbide masonry bit at?
Stay at or below 1000 RPM. Running faster glazes the hole and overheats the carbide tip, which is the usual way these bits die early. Use steady pressure rather than speed, back the bit out periodically to clear dust so the flutes keep evacuating, and let it cool before you pack it away.
5) Is this the right bit for drilling anchor holes for conduit straps and electrical rough-in?
Yes, that is squarely what the 1/4 inch Minerallac carbide bit is for. A 1/4 inch hole is the common size for the screw anchors used to fasten one-hole and two-hole straps, mineral-mac clips, and small box mounts to block or concrete walls. Match the bit diameter to the anchor manufacturer's specified hole size, and take the 6 inch length if the strap or standoff adds stack-up before the bit reaches the wall.
6) Is this masonry bit sold singly or in a pack?
Single bit, one piece per order. There is no multi-pack or assortment, so if you are stocking a van or a facility shop and want spares on the shelf, order the quantity you need of each length separately.
7) Why does this bit have a gold tip and a black shaft?
The Minerallac masonry bit is finished in black oxide with a gold head. The black oxide gives the steel shaft some corrosion resistance in a damp gang box or truck bin, and the gold-colored head is a quick visual cue so a crew can pick the carbide masonry bit out of a pouch full of twist bits without reading the flute.
How fast can I get the Minerallac 59906 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 Minerallac 59906 come with a warranty?
Absolutely. The Minerallac 59906 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 Minerallac 59906?
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 Minerallac 59906 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.
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