Your Go-To Diamond Core Drill Bit Manufacturer

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We Are an Experienced Manufacturer of Core Drilling Tools and Equipment

Rock-Weld is a family-owned small business that has been manufacturing diamond core drill bits since the 1950s. We have continuously served the precast manhole industry and local contractors for decades with our dedication to customer service and quality American-made products.

Find solutions to your concrete Coring and cutting needs

Services We Offer

Browse through the variety of services the Rock-Weld team can assist you with:
Core Drilling Rigs
  • Manufacturing and sale of portable stand-mounted core drill rigs as well as handheld core drills
  • We have a proprietary stand-mounted core drill rig manufactured in-house; all Rock-Weld rigs come standard with a 20-amp, slip-clutch, 2-speed with overload protector power unit:
  • Rock-Weld Model 128 "Manhole Rig" - Anchor stand mounted with spacer block allowing for the use of up to a 16" bit
  • Rock-Weld Model 22 - Vacuum base mounted with or without spacer block (up to 8” bit capacity without spacer block), vacuum pump, and gasket for the base
  • Rock-Weld Model 22A - Vacuum base mounted with or without spacer block, no vacuum pump or gasket; both vacuum bases are also anchored via a hole in the center of the base
  • WEKA DK12 Handheld Core Drill - 3-speed, slip clutch drill with 4" bit capacity or up to 6" mounted on a stand
  • Servicing of core drill motors from new water seals or a switch to a complete rebuild; currently, we only service DEWALT DW194/CB 748 Motors and DK12 Handheld Core Drills
Core Drill Bits
  • Manufacturing and sale of diamond core drill bits for the precast manhole industry as well as contractors
  • Sizes range from less than 1" in diameter to over 60", and many sizes are in stock regularly; custom sizes/flanges are also available per request
  • Re-segmenting or re-crowning of used diamond core drill bits
  • We take your used core bit and determine if it is still within tolerance to be cut, machined, and have new cutting teeth or "segments" attached, saving you money over time versus buying new; the core bit must be 2" in diameter or greater for re-segmenting
Other Services
  • Contract Core Drilling and Saw Cutting Services - Work with a team of experienced core drillers regularly who can get the job done right
  • Manufacturing/Procuring other items for the concrete cutting and coring industry

Our Story

Rock-Weld Industries Inc. has more than 70 years of experience and originally served local contractors, offering high-quality concrete and masonry supplies across multiple states. The business was purchased in 1987 by Chris and Mike Salter who were soon able to make a name for Rock-Weld in the Precast Manhole Industry. Today the Company is operated by Chris and his son Blair and services many Precast Manhole Plants across the nation as well as Local Contractors.

Contact Us

Please contact Chris or Blair for more information about our diamond core drill bits and other services.
Phone: 336-375-6862
Service Area: Nationwide
Address3515 Associate Dr Greensboro, NC 27405
Hours of OperationMonday-Thursday 7:30 a.m.-4:00 p.m. Friday 7:30 a.m. - 3:00 p.m.
Emailblair.rockweld@gmail.com

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Emailchris@rockweld.com

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Phone(336) 375-6862
Service AreaNationwide
Hours of OperationMonday-Friday, 7:30 a.m.-4:00 p.m.
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