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3-Cutter Full Carbide Head SDS-Plus Drill Bits Manufacturer & OEM | Zhonghuan

Manufacturer and OEM supplier of 3-cutter (120 degrees) full carbide head SDS-Plus hammer drill bits — one-piece sintered carbide head, resistance friction-welded, Oe3-20 mm. The Y-cutter geometry built FCH-only, for reinforced concrete, anchor holes and steel-deck pass-through. Private-label programs.

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Zhonghuan Tools manufactures the 3-cutter full carbide head SDS-Plus drill bit as a factory-direct OEM and private-label program. The cutting head is a single sintered piece of tungsten carbide ground to three edges at 120° around a self-centering tip, then resistance friction-welded to a hardened 40Cr body — no brazed inserts, no silver-braze seam to fatigue under impact. Range Ø3–20 mm.

We specialize this geometry as a full-carbide-head system: our 3-cutter is a one-piece sintered head — the small-diameter single-piece construction the premium brands also use at SDS-Plus sizes. It is the same 120° geometry Heller markets as its Trijet tip, supplied direct-from-factory at OEM economics under your brand.

Why specify the 3-cutter full carbide head

Three carbide edges keep at least two engaged at all times, so the bit centers itself, drills a near-perfectly round and calibrated hole for anchors, and stays steady when it grazes rebar. Because the one-piece head holds its gauge as it wears, the hole stays calibrated and the bit is less likely to bind on a bar. The signature application is composite steel decking: the full carbide head drills the concrete and punches through the light-gauge steel deck plate in one pass, with no bit change.

OEM / private-label program

Your brand, your packaging, with documented carbide grade, weld method, and runout inspection. Our full-carbide-head grade is the higher-cobalt YG11C for the heaviest-impact duty; body steel is 40Cr standard, 42CrMo on request. Send your diameter range, target application (anchor work, deck fixing, rebar exposure), and packaging brief and we reply with a sample plan, an inspection record set, and a quotation path. Pricing is prepared per RFQ — contact us for a project quotation.

Related Procurement Programs

Sourcing this geometry for a distributor, importer, or private-label channel? These OEM programs cover the questions buyers ask next.

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Related Resources

3-Cutter Full Carbide Head SDS-Plus: The 120 Degree Geometry, the Seam-Free Head, and When to Specify It
The 3-cutter (120 degrees) full carbide head SDS-Plus hammer drill bit: one-piece sintered carbide head, Ø3-20 mm, that drills concrete and punches steel deck plate without a bit change. Geometry, carbide grade, the seam-free weld, and how it fits beside 2-cutter, 4-cutter and full-head SDS-Plus.
Full Carbide Head SDS-Plus Drill Bits: Welding Methods Compared — A Manufacturer's Engineering Guide
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