ROCK-DRILLING & MINING HARDMETAL
Cemented Carbide Rock-Drilling and Mining Tool Components
Technical sourcing of carbide buttons, inserts, wear elements and steel-supported tool components for drilling, mining, quarrying and construction duty.
MNK-G.S.A reviews the drilling system, rock conditions, tool geometry, carbide grade, steel body, retention route and inspection plan as one sourcing package. A button shape or nominal diameter alone is not sufficient to establish interchangeability.
Drilling and Wear Routes
Top-Hammer
Buttons and inserts for threaded or tapered percussion bits, selected with the bit body, connection, face design, flushing arrangement and rock condition.
Down-the-Hole
Face and gauge buttons for DTH bit configurations, with the hammer system, hole size, air and cuttings evacuation, formation and service strategy defined.
Rotary & Construction
Carbide elements for selected rotary, excavation, trenching and construction-tool duties, supplied against an approved drawing or equipment reference.
Application labels describe the operating route; they do not define a universal carbide grade. The requested life, failure mode and regrinding or replacement strategy must be stated.
What the Supply Package Can Include
Loose Hardmetal Components
- Spherical, ballistic, conical or drawing-defined buttons
- Face, gauge and wear-protection inserts
- Chisel, wedge or special-profile carbide elements
- As-sintered, ground or finish-machined condition
- Prototype, trial batch and repeat-production routes
Supported and Finished Tools
- Carbide fitted to approved steel bit bodies or supports
- Complete or semi-finished drawing-based components
- Specified interference, joining or mechanical-retention route
- Heat treatment, finishing, marking and packing requirements
- Dimensional and batch documentation as agreed
Specify the Duty Before the Grade
Operation and Formation
- Top-hammer, DTH, rotary or other defined system
- Rock type, abrasivity, fracturing and variability
- Hole diameter, depth, orientation and flushing medium
- Impact, rotation, feed and equipment reference
- Observed wear, fracture, pull-out or body failure
Component and Material
- Profile, diameter, height, radii and tolerances
- Face or gauge position and required projection
- Carbide family, binder, grain-size and property limits
- Pocket geometry, interference or retention requirement
- Steel body, heat treatment and finished-tool drawing
A harder grade is not automatically a better drilling grade. Wear resistance, toughness, button geometry, retention and the surrounding steel must be balanced for the actual duty. Proposed alternatives require technical approval against the governing equipment or customer specification.
Standards and Their Boundaries
| Reference | Relevant scope | Procurement boundary |
|---|---|---|
| ISO 513:2012 | Classification and application of hard cutting materials for machining by chip removal. | Its scope explicitly excludes mining and other percussion tools; P, M, K, N, S and H groups must not be used as mining-grade equivalents. |
| ISO 1717:1974 | Connecting dimensions for specified rotary drill rods and drill-bit shanks. | It does not define carbide-button grade, profile, fit or acceptance. |
| ISO 1718:1991 | Basic dimensions for drill rods and tapered connections used in percussive drilling. | The connection standard does not replace the bit, button or material drawing. |
| ISO 10208:1991 | Dimensions and tolerances for specified left-hand rope threads in percussive drill-steel equipment. | Thread conformity does not establish tool-body or hardmetal interchangeability. |
| ISO 4489:2019 | Sampling and testing framework for physical and mechanical characteristics of hardmetals. | The purchase specification must still define which tests, sampling plan and acceptance values apply. |
| ISO 4506:2018 | Uniaxial compression testing of cemented carbide. | A compression result alone does not predict drilling performance or set a universal grade limit. |
| ISO 3369, ISO 3327, ISO 4499 and ISO 28079 | Density, rupture strength, microstructure, WC grain size, porosity and Palmqvist toughness methods. | Method compliance does not prove grade identity or fitness for a particular rock formation. |
Grade Verification and Approval
A manufacturer grade, ВК designation, WC-Co description and laboratory property set are different types of information. MNK-G.S.A records the relation being proposed and does not declare a direct equivalent unless the chemistry, binder, grain-size, properties, manufacturing route and application evidence support that conclusion.
See the ВК / WCo / YG Grade Verification guide for the controlled cross-reference method. Final approval remains tied to the drilling duty, equipment reference and agreed trial or qualification route.
Inspection and Traceability
- Carbide batch identity and declared composition or grade document
- Density, hardness, rupture strength, toughness or microstructure results where specified
- Button or insert dimensions, profile, surface condition and visual inspection
- Steel-body material, heat treatment and dimensional records for assemblies
- Retention or joining controls and any customer-defined qualification test
- Lot marking, packing and traceability through prototype and repeat supply
Use the separate Cemented Carbide Inspection and Test Methods guide to select compatible methods and reporting requirements. Acceptance values must come from the governing drawing, purchase specification or approved qualification plan.
Rock-Drilling Component RFQ Checklist
- Drilling system, machine and tool reference
- Rock or formation information and operating conditions
- Current drawing, sample or approved component reference
- Required button or insert profile and dimensions
- Current grade, certificate or property requirements
- Loose component or finished-tool supply route
- Observed wear or failure and target improvement
- Trial quantity, batch demand and repeat forecast
- Inspection, qualification and traceability documents
- Delivery destination and required date
Related Hardmetal Resources
- Hardmetal & Tooling — the main sourcing hub for cemented-carbide materials and tooling components.
- Carbide Wear Parts and Components to Drawing — broader wear-component procurement outside the drilling-specific route.
- ВК and ТК Cemented Carbides — grade-family context with controlled designation boundaries.
- ВК / WCo / YG Grade Verification — a method for evaluating cross-reference claims.
Send Your Rock-Drilling Tool Inquiry
Send the tool and equipment reference, drawing or sample information, rock conditions, grade or property requirements, quantity, inspection plan and delivery destination.