

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The TRU-MAXX CD-9 is a steel core bit designed for drilling large-diameter holes through masonry, concrete, and similar hard materials. With a 6-inch drill bit diameter and a maximum drilling depth of 13 inches, this core bit handles demanding rough-in and penetration work in both new construction and retrofit applications. At 1 pound, the CD-9 is a manageable size for positioning and setup. It is suited for use by plumbers, HVAC installers, electricians, and general contractors who need precise, clean-bore penetrations through structural materials.
This core bit is used in commercial and residential construction where large conduit openings, pipe sleeves, or duct penetrations must pass through concrete slabs, block walls, or similar substrates. Its 6-inch diameter makes it well-matched for sleeve or chase openings that require a clean, full-diameter bore without chipping or excessive breakout on the exit face. The 13-inch maximum drilling depth accommodates standard wall and slab thicknesses commonly encountered in trade work.
Designed as an OEM-style replacement or direct-use core bit for core drilling rigs and hammer drills equipped with a compatible arbor sized for 6-inch steel core bits.
Core bit installation and operation should be performed by a qualified tradesperson familiar with core drilling equipment. Ensure the drill rig or hammer drill is fully powered down and the bit is securely seated in the arbor before starting. Use appropriate water feed or vacuum systems as required to manage heat and debris during drilling. Follow all applicable OSHA and jobsite safety requirements when working with rotary core drilling equipment near structural members or embedded utilities.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!