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Diamond Composite Anchor Bolt Bit

PDC Two Wing Anchor Bit
Type: Two Wing Half Piece, Full Piece
Level: Normal, Enhanced, High Strength (Super)
Product Models: 25,27,28,29,30,32,36, 42
Scope of Application: Coal mine support, engineering tunnel, such as small empty diameter rock hole drilling.

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PCD anchor bit / PDC anchor bit for roof support in mines
PDC anchor shank bit is the most basic part of roadway support in coal mines. It can bound the surrounding rock of roadway together, and make the surrounding rock support itself.
Roof bolt drill bit is a kind of drilling tool for fixing anchor bolts of the coal mine. The two wings of our PDC roof bolt drill bit adopt PDC (Polycrystalline Diamond Compact) as the cutting tooth.
Application of PDC has greatly improved the drilling efficiency of roof bolt drill bit and is taking the place of tungsten carbide roof bolt drill bit gradually.

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Product Types and Application Range of Diamond Composite Bolt Bit

Product Name Level Type of Diamond Composite Adapted Strata Bit Diameter Common Thread Remark
PDC Two-Wing Anchor Bit Normal Half Piece F≤8  


























Our factory uses two kinds of diamond composite sheets, which are flat sheets and spherical sheets. The flat sheet has fast footage and a complete stratum.

The spherical sheet has strong impact resistance, is not easy to break, and is suitable for crushing and complex stratum.

Full Piece
Enhanced Half Piece F≤10
Full Piece
Super Strength Full Piece(Spherical Sheet) F≤12
High Strength Full Piece(Flat Sheet ) F≤12
PDC Three-Wing Anchor Bit   Half Piece F≤16 27,28,30,32
  Full Piece F≤16 36,42

Reference Table

Rock The hardness of the category   Medium soft Medium Medium Hard Hard Harder Hardest
Drillability Level 1 2 3 4 5 6 7 8 9 10 11 12
Platts Hardness F≤10 10<F≤15 15<F≤20
Representative Rock Sandstone, Limestone, Marble, Dolomite, Pyrite, Fragile Granite, Shale Granite, Solid Sandstone, Conglomerate, Limestone, Quartz Veins Solid Granite, Quartzite, Basalt, Igneous Rock

Two-wing Anchor Bit

High Strength  


Q: What’s your delivery time?
A: Commonly products need 15-20 days to produce, within 3 days if in stock.

Q: What’s methods of payments are accepted?
A: We agree T/T, L/C, West Union, etc.

Q: What about the Shipments?
A: We can use by Express, by Air, by Sea, and by Train. Or send the goods to your Chinese agent.

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