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TOP HAMMER DRILL TOOL
Bits · rods · couplings | five series: R32 / T38 / T45 / T51 / handheld
Choose by thread series
The thread size fixes the drill and rod diameter; under each series, open a page by bit face or rod type.
R32 series 1 1/4″
The most common thread for handheld drills and small rigs: Φ43–89 mm bits on Φ32 mm rods, with extension, MF and T35 MF rods.
- 6 type pages
- 61 sizes
- Φ43–89 mm bits
T38 series 1 1/2″
The main size for underground drifting and medium holes: Φ64–102 mm bits on Φ39 mm rods, with flat, half concave, concave, convex and retrac faces.
- 12 type pages
- 128 sizes
- Φ64–102 mm bits
T45 series 1 3/4″
Bench drilling and underground long holes: Φ70–127 mm bits on Φ46 mm rods, with reaming bits and guide rods.
- 8 type pages
- 111 sizes
- Φ70–127 mm bits
T51 series 2″
Main series for large-diameter long holes and benches: Φ76–152 mm bits; rods in T51, GT60, EL60, ST58, ST68 and T-Wiz60 bodies.
- 14 type pages
- 206 sizes
- Φ76–152 mm bits
Handheld & small hole tools H19 / H22
Handheld drills and small holes: H19 (3/4″) and H22 (7/8″) integral steels, stone working tools, and 7° taper bits in chisel, cross and button types.
- 6 type pages
- 226 sizes
- Φ24–42 mm
How to read the range
Within one thread series, the face sets how the rock breaks; the rod body sets hole depth and straightness.
Bit face
Flat general purpose, balanced speed and life; Concave / half concave good gauge holding for abrasive hard rock; Convex fast collaring; Retrac with guide buttons, less stalling when pulling out.
Rod type
Extension threads on both ends, added one by one; MF thicker body, thread inside the sleeve — for deep holes and high impact frequency; Guide larger tube body to control deviation in long holes.
Coupling sleeves
standard for normal depths; Full bridge full-bridge adds a bridge at the thread root — better fatigue life for deep holes and high impact frequency.
Need tooling matched to your drill?
Send drill model, hole diameter, depth and rock type — we reply with a bit + rod + coupling list and quotation within 24 hours.