Features
- IRON BLAST strengthened body for improved fatigue resistance
- 4-cutter carbide tip for extended service life
- Redesigned head geometry for improved resistance to rebar strikes
- Wear-mark indicator for monitoring usable life
- No-break replacement guarantee while wear mark is visible
- Compatible with SDS-Max rotary hammers
- Manufactured in Germany
Specifications
| Bit Diameter | 7/8 in (0.875 in) |
| Working Length / Drilling Depth | 31 in |
| Overall Length | 36 in |
| Bit Material | Carbide tipped |
| Tip Type | 4-cutter carbide |
| Shank Style / Chuck Fitment | SDS-Max |
| Bit Type | Masonry |
| Package Contents | 1 bit |
| Assembled Weight | 1.24 lb |
| Recommended Safety Equipment | Safety glasses, gloves, hearing protection |
Related Tools
Related Articles
SDS Max masonry drill bit with a 4-cutter carbide tip and a 36" overall length (31" working length). The bit is manufactured using a heat/strengthening process (IRON BLAST) to improve fatigue resistance. The 4-cutter carbide head is designed for longer life and improved performance when encountering rebar. Intended for use with SDS-Max rotary hammers.
Project Ideas
Business
Micro-Coring for Cables & Irrigation
Offer a mobile service to drill precise 7/8" pass-throughs up to 31" in concrete, block, and stone for low-voltage wiring, camera lines, and drip tubing—an agile alternative to large coring rigs in tight spaces.
Retrofit Epoxy Anchor Installations
Provide drilled-and-epoxied anchors for pergolas, handrails, gates, and equipment pads in existing slabs. Use specification-driven hole depths, dust extraction, and ICC-approved adhesives; include pull/torque testing.
On-Site Boulder Fountain Drilling
Specialize in drilling landscape rocks for water features. Core vertical channels and spillways, install plumbing and basins, and package pumps, lighting, and maintenance plans for a turnkey offering.
Retaining Wall Drainage Retrofits
Relieve hydrostatic pressure by drilling weep holes and installing filtered sleeves in existing masonry walls. Provide inspection, before/after moisture readings, and preventative maintenance scheduling.
Rebar-Resistant Penetration Subcontractor
Partner with electricians, HVAC, and GC teams to add small-diameter penetrations in rebar-heavy concrete. Use scanning, dust control, and the 4-cutter head’s rebar-strike tolerance to minimize downtime and patching.
Creative
Boulder Fountain Core & Spillway
Drill a vertical 7/8" channel up to 31" deep through a landscape boulder for pump tubing, then add angled cross-holes for spillways. Plumb with 1/2–3/4" tubing and create a self-contained recirculating feature with hidden basin and lighting.
Hidden LED Conduits in Concrete Steps
Bore long, clean runs through concrete stairs or garden walls to route low-voltage cables for step lights and handrail LEDs. Hide penetrations at risers/returns and pull cable using a fish tape for a seamless, illuminated walkway.
Stone-and-Concrete Lantern Column
Stack pavers or split stone and drill 7/8" light tunnels that accept frosted glass or acrylic tubes. Run wiring internally, insert LED modules, and cap with a stone top to create sculptural outdoor lanterns.
Dowel-Jointed Stone Bench/Sculpture
Create aligned 7/8" holes in adjacent boulders or slabs to accept epoxied steel rods, forming a stable stone bench or abstract sculpture. The deep holes allow strong hidden connections without visible brackets.
Planter Weep Holes and Irrigation Sleeves
Retrofit thick concrete planters and retaining walls with 7/8" drain/weep holes and sleeves for drip lines. Add filter fabric and small PVC inserts to improve drainage and plant health while concealing irrigation.