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What are the shapes of mining cutting tools
Category: Industry News
Time: 2026-04-30
Summary: Flake: thin and wide, easy to cut into plastic soft rock (grades 1-4), but with poor bending resistance, commonly used for drilling bits.
Flake: thin and wide, easy to cut into plastic soft rock (grades 1-4), but with poor bending resistance, commonly used for drilling bits.
Columnar (including coarse): Strong bending and compression resistance, small cutting surface, suitable for medium hard rock layers (grades 4-7).
Needle shaped: used for manufacturing self grinding drill bits, suitable for drilling in medium hard rock formations.
Octagonal pillar vs square pillar: Octagonal pillar is more prone to breaking rocks, has smooth powder discharge, is wear-resistant and dull, and is easy to weld firmly.
Axe shaped (conical/tapered): The tooth head is conical, suitable for hard coal or conditions containing gangue.
Blade shaped (flat): The tooth head is flat and suitable for soft or medium hard coal.
Steel spike shaped (nail shaped): with a pointed circular end, used for salt mining in wells and mines, in conjunction with hammering operations.
Disk shaped rolling cutter: a circular disc with a cutting edge, used for TBM/shield tunneling machines to crush rocks by rolling and squeezing.
Diamond profile:
Electroplating type, impregnated type, reinforced column tooth type, thermal stability composite sheet type;
Special variants, such as the "helmet shaped" design, have a hat shaped top and sharp lips that are first cut to form an acute angle.
Deep hole drill bit shape: mostly with a straight or tapered handle structure, including dual guide bars, divided into external and internal chip removal (such as BTA drill, gun drill).
Tungsten steel reamer shape: separate and machine use, including straight or spiral grooves, used for hole precision machining
Keywords: What are the shapes of mining cutting tools
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