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Minerallac Relton SDS Rotary/Hammer Carbide Masonry Drill Bit
Model: MIN-59986-2
Minerallac Relton SDS Rotary/Hammer Carbide Masonry Drill Bit, 5/16" x 6"The Minerallac Relton SDS Rotary/Hammer Carbide Masonry Drill Bit is built for fast, accurate drilling in concrete, block, and...
Minerallac
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$23.07
Minerallac 59724 Relton Rotary/Percussion Carbide Drill Bit, 1/4" x 4"
The Minerallac 59724 Relton Rotary/Percussion Carbide Drill Bit is a 1/4" x 4" carbide-tipped bit engineered for dual-mode drilling in rotary and percussion (hammer) drills. Part of the Relton line carried by Minerallac, this bit is built to bore clean, accurate holes through masonry, concrete, and block for anchor setting, conduit strap mounting, and electrical box installation. Its 1/4" diameter and 4" overall length make it well suited for standard-depth holes on jobsites where dependable, repeatable performance is required. Electrical contractors rely on tooling like this to keep conduit, box, and fixture installations moving efficiently on masonry and concrete surfaces.
Key Features
- Trade Size: 1/4" diameter x 4" overall length, sized for standard-depth masonry and concrete drilling applications.
- Durable Construction: Carbide-tipped design resists wear and holds a sharp cutting edge through repeated use in abrasive masonry and concrete.
- Rotary/Percussion Versatility: Dual-mode design functions in both rotary drills and percussion (hammer) drills, giving installers flexibility across different tools and jobsite conditions.
- Relton Series: Manufactured under the Relton line distributed by Minerallac, a name trusted by electrical contractors for dependable drilling accessories.
- Efficient Boring: Engineered flute geometry helps clear debris during drilling, reducing binding and speeding hole completion for anchors and fasteners.
- Compact Length: 4" overall length suits typical anchor and fastener embedment depths without excess bit overhang.
Technical Specifications
- Refer to manufacturer documentation for complete technical specifications.
Typical Applications
- Drilling Anchor Holes in Masonry, Concrete, and Block
- Mounting Conduit Straps and Clamps
- Installing Electrical Boxes and Fixtures on Masonry Surfaces
- Commercial and Industrial Electrical Installations
- Renovation and New Construction Projects
Why Minerallac?
Minerallac supplies the Relton 59724 carbide rotary/percussion drill bit for electrical contractors who need consistent, reliable drilling performance on demanding jobsites. Its carbide tip and dual-mode rotary/percussion design are built for the rigors of masonry and concrete drilling encountered in commercial and industrial electrical work. Choose Minerallac for dependable tooling that keeps installation crews moving without sacrificing accuracy or durability, backed by a brand electrical professionals already trust for conduit, fittings, and jobsite accessories.
Manufacturer Resources
Product Specs
- Product Subgroup:
- Drill & Driver Bits
- Product Size:
- 4"
- Product Type:
- Drill Bit
- Department:
- Electrical
- Product Material:
- Carbide
- Configuration:
- Rotary/Percussion
- list_batch:
- MIN-20260918
- Product Group:
- Power Tools & Accessories
Minerallac 59722 – Frequently Asked Questions
1) Can I use this carbide bit in a hammer drill, or is it rotary only?
Both. The Relton bit is a rotary/percussion carbide bit, so it runs in a straight rotary drill or with the hammer action engaged. That means one bit covers a cordless drill for light work and a percussion drill when you hit harder concrete.
2) Will this bit fit an SDS-Plus or SDS-Max rotary hammer?
No. The Relton 59722 and 59724 are rotary/percussion carbide bits, not SDS shank bits, so they chuck into a standard drill or percussion drill rather than an SDS rotary hammer. If you are running an SDS-Max hammer, a bit like the Milwaukee 48-20-3956 SDS-Max MX4 4-cutter is the right tool family instead.
3) Can I drill masonry with a black oxide twist bit instead of a carbide masonry bit?
No. The Relton 59722 and 59724 are carbide-tipped bits configured for rotary and percussion drilling, which is what masonry, concrete, and block require. The Milwaukee 48-89-2729 THUNDERBOLT is a 23/64 inch black oxide-coated drill bit, a metal and wood twist bit design, and black oxide steel will dull quickly against abrasive concrete. Keep the carbide bit for anchor holes in masonry and use the THUNDERBOLT for steel and wood.
4) How deep a hole can I get with a 4 inch masonry bit?
Overall length is 4 inches, and part of that sits in the chuck, so plan on standard anchor embedment depths rather than through-drilling a thick wall. It is sized for typical anchor and fastener depths in block and concrete without excess bit overhang. For deep through-holes in structural concrete you want a longer bit.
5) Will this drill through concrete block and brick, or just poured concrete?
The carbide tip is made for masonry, concrete, and block, which covers CMU, brick, and poured slab or wall. Typical electrical use is anchor holes for conduit straps, clamps, boxes, and fixtures on those surfaces.
6) Is a carbide masonry bit the right choice for drilling steel or sheet metal?
No. This is a carbide-tipped masonry bit for concrete, block, and brick. For metal you want a twist bit in a steel grade, such as the Milwaukee THUNDERBOLT black oxide bits or the Milwaukee Red Helix cobalt steel bits.
7) Which bit size do I pick for a 1/4 inch concrete anchor?
Match the bit diameter to the anchor's stated drill size, not to the anchor bolt name. The 59724 cuts a 1/4 inch hole and the 59722 cuts 3/16 inch, which are the two most common sizes for light strap and box anchors in block and concrete.
8) What do I use if I need to drill tile or stone rather than set anchors in block?
The Relton 59722 and 59724 carbide bits are percussion-capable bits sized 3/16 inch and 1/4 inch by 4 inch for anchor holes in masonry and concrete. For hard, brittle materials where hammering would crack the surface, an abrasive-cutting bit is the alternative: the Lenox 12111-10DGHS is a 5/8 inch diamond grit drill bit in the D/S-10Dg series, which grinds rather than percussion-drills.
9) Do I need a different bit for an impact driver?
These Relton bits are built for rotary and percussion drills, not for impact driver hex-shank use. If your crew is drilling off impact drivers, an impact-rated bit line like Milwaukee SHOCKWAVE Impact Duty is the matching type.
How fast can I get the Minerallac 59722 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 59722 come with a warranty?
Absolutely. The Minerallac 59722 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 59722?
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