Round Shank Bits, Coal Mining Picks & Foundation Drilling Tools — China Sourcing
SourcingProChina is a China-based sourcing agent specializing in tungsten carbide tipped cutting tools
for the mining, tunneling, and road construction sectors. If you've dealt with premature tip wear,
shifting lead times, or a factory that quietly changed specs after your deposit cleared, you already
know why buyers use a sourcing agent instead of cold-contacting a manufacturer directly. We work with
a vetted network of factories across China producing round shank bits, coal mining bits,
foundation drilling tools, trenching tools, road cutter bits, and road milling teeth, and we
handle the parts most buyers struggle with on their own: factory verification, spec confirmation,
quality inspection, and export logistics — so you get the right tool, at the right spec, without
managing the supply chain yourself.
What We Source For You
Conical Cutting Picks (Round Shank Bits)
Press-fit tungsten carbide–cobalt (WC-Co) tip on a high-tensile alloy steel body. The conical profile
self-rotates during operation, spreading wear evenly across the tip rather than concentrating it on one
face — which is the main reason these outlast flat-ground alternatives in coal seam, mixed-face, and
rock-cutting conditions. We source these individually or as full assemblies.
Pick Holders (Block / Sleeve)
Forged from high-manganese or alloy steel, with a bore pocket held to tight shank tolerance so the pick
seats correctly and doesn't work loose under repeated impact. Available in weld-on and bolt-on
configurations depending on your drum design.
Retaining Rings (Snap Ring / Locking Ring)
Spring-steel clips that seat into the shank groove to keep the pick from ejecting under high-frequency
percussion loads, and to cut down vibration transfer into the holder block. Small part, but a common
point of premature failure if the wrong grade is used — we confirm spring steel spec before ordering.
Foundation Drilling Tools & Rotary Bits
For rotary drilling rigs, foundation augers, and diaphragm wall equipment, we source rotary-series
carbide bits engineered for hard-formation drilling in piling, geotechnical boring, and urban foundation
work.
Trenching Tools
Carbide-tipped cutting components for trenchers and chain-type digging equipment, sourced to the shank
and tip spec your machine requires.
Road Cutter Bits & Road Milling Teeth
For scarifiers, cold planers, and milling drums used in bridge deck maintenance, highway resurfacing,
and industrial floor preparation. We source both standard stock dimensions and custom-geometry bits
engineered to fit or replace OEM tooling on major planer and milling platforms.
Specifications We Confirm Before You Order
Exact dimensions vary by machine and application, so rather than quote you generic numbers, we confirm
the following against your machine model or OEM part number before sourcing:
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Parameter
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Typical Range (Factory-Standard)
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Shank Diameter
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22 / 25 / 30 / 38 mm (round shank bits); 12 / 19 / 22 mm (road milling teeth)
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Overall Length
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82–170 mm (mining picks); 38–100 mm (road milling teeth)
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Carbide Tip Grade
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YG8 / YG8C / YG11C / YG13C / YK20 (ISO K-grade tungsten carbide)
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Body Material
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42CrMo / 40Mn2 alloy steel, quenched & tempered
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Retaining Ring Material
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65Mn spring steel
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Brazing Method
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High-frequency induction brazing (silver-copper filler); vacuum brazing available for critical applications
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Tip Hardness
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HRA ≥ 89.5
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Body Hardness
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HRC 48–55
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Dimensional Tolerance
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Shank Ø ±0.02–0.1 mm; length ±1 mm
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We verify these against test reports before shipment — not just the factory's spec sheet.
See "How We Protect Your Order" below.
Compatible Machinery
Our factory network produces tooling engineered to fit — or directly replace — OEM parts across major
equipment platforms, including:
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Coal shearers and continuous miners (longwall/shortwall drums, room-and-pillar development)
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Roadheaders (boom-type and transverse, mixed-face and hard-rock tunneling)
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Rotary drilling rigs and foundation augers (piling, diaphragm wall, geotechnical boring)
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Tunnel boring machines (TBM) (custom gauge and face picks for metro, highway, and hydroelectric projects)
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Walk-behind scarifiers, ride-on planers, and drum-type grinders (industrial floor prep, bridge deck maintenance, airport apron scarification)
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Trenchers and pile-driving equipment
Not sure which series or shank spec fits your machine? Send us your model number, OEM part number, or
a drum/drawing reference, and we'll cross-check it against our factory network's interchange data
before you commit to an order.
How We Protect Your Order
Buying cutting tools from an unfamiliar Chinese factory carries real risk — misrepresented carbide
grade, skipped hardness testing, or a "sample-quality" batch that doesn't match the bulk shipment. As
your sourcing agent, we sit between you and the factory specifically to close those gaps:
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Factory vetting — we work only with manufacturers holding ISO 9001:2015-compliant
production processes, and we check production capacity before recommending a factory for your volume.
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Batch-level testing — carbide tip hardness (HRA ≥89.5), body hardness (HRC 48–55),
and brazing pull-force testing confirmed before your order ships, not just on request.
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Independent inspection available — we can arrange third-party pre-shipment
inspection (SGS, BV, or an inspector you nominate) so you're not relying solely on the factory's own QC.
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Documentation — material test reports (MTR), dimensional inspection reports, and
MSDS collected and passed on to you with the shipment.
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OEM / private-label coordination — custom part numbering, logo marking, and
packaging artwork managed with the factory on your behalf.
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Logistics handled — export packaging, FOB / CIF / EXW terms, and freight
arrangement, with support for first-time importers navigating the paperwork.
Who We Work With
We source for infrastructure contractors, mining equipment MRO buyers, drum fabricators, and equipment
distributors across North America, Europe, the Middle East, Southeast Asia, Africa, and Australia —
including buyers building their own private-label tooling brand and buyers simply looking for a more
reliable alternative supplier after a bad experience with a previous factory.
Frequently Asked Questions
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Q1: What is your MOQ for a first trial order, and can I get samples before committing to bulk?
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As a sourcing agent, we work with multiple qualified factories rather than a single production line,
which gives us more flexibility on trial quantities than going direct to one manufacturer. For most
round shank bits and coal mining picks, factory-standard MOQs run from 100–200 pcs per model, but we
can often negotiate mixed-model sample sets (5–10 pcs per model) for serious buyers who want to
evaluate carbide grade and fit before scaling to a container order.
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Q2: How do I know the carbide grade and steel body actually match what's on the spec sheet
— how do you prevent supplier fraud?
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This is exactly the risk a sourcing agent is meant to remove. We don't take a factory's word for it
— we require carbide tip hardness testing (HRA ≥89.5), body hardness verification (HRC 48–55), and
brazing pull-force test reports for every batch before it ships, and we can arrange independent
third-party inspection (SGS, BV, or an inspector of your choice) at the factory gate. You get the
test documentation and material certificates (MTR) alongside your shipment, not just a sales promise.
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Q3: Can you source round shank bits, foundation drilling tools, and road milling teeth that
fit our existing machine — even if it's a Western brand?
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Yes. Send us your machine model, OEM part number, or a dimensional drawing, and we cross-reference
it against the factories in our network that manufacture to the matching shank tolerance and holder
geometry — whether that's for coal shearers, roadheaders, rotary drilling rigs, or planer/scarifier
drums. We handle the technical back-and-forth with the factory so you're not stuck translating
drawings yourself.
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Q4: What if our regular supplier's lead time keeps slipping, or we want to compare
alternative Chinese factories without starting from zero?
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That's one of the main reasons buyers come to us. Because we already have vetted, audited factories
across carbide cutting tool categories — trenching tools, coal mining bits, road cutter bits,
foundation drilling tools — we can shortlist 2–3 alternative, capacity-checked manufacturers for you
quickly, rather than you cold-sourcing and re-vetting a new supplier from scratch after a delay.
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Q5: Do you support OEM / private-label branding, and how does customs/logistics work if
we've never imported from China before?
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Yes — we coordinate custom part numbering, logo engraving or marking, and private-label packaging
with the factory on your behalf, and most producers in our network accept OEM branding at 500
pcs/SKU or negotiate lower for repeat buyers. On the logistics side, we manage export packaging,
FOB/CIF/EXW terms, and freight coordination, and can walk first-time importers through the paperwork
so nothing gets held up at your port.
Request a Quote
Tell us your machine model, required dimensions or OEM part number, and estimated order volume —
we'll come back with factory-verified pricing, lead time, and shipping terms, typically within 24
hours. Request a Quote →