Blast Furnace Drill Bits, Drill Rods & Couplings
The full taphole drilling set from one workshop: cross and button bits, threaded rods, shank adapters and coupling sleeves. Body in 45# steel, YG8 carbide, threads cut to the machine you run.
- Ø28–120 mm bits
- T38 · R38 · T32 · R32
- 45# & 42CrMo
- Matched sets
Seven items, all made for the taphole
Each line below is produced in our own workshop in Tai’an, so the interface between two parts is our problem, not yours.
Drill bitsCross and three-wing bits
Brazed YG8 tips, Ø28–120 mm, flushing hole sized to your clay. Made to your machine’s shank, not to a catalogue number.
Button bitsButton drill bits
Spherical carbide buttons, regrindable in your workshop — the practical choice in abrasive clay where a cross bit seats too fast.
Drill rodsDrill rods with thread
32/38 mm body, T38, R38, T32 or R32, quenched and tempered end to end, thread cut and gauged in-house.
CarbideCarbide drill bits
Tungsten carbide inserts vacuum-brazed and ground to the wing profile, so the bit holds gauge instead of polishing the hole undersize.
ShankShank adapters
Hex shanks and striking bars matched to your drill chuck and to the rod thread you already run.
CouplingCoupling sleeves
Full-length threaded sleeves with the wall thickness and engagement that keep joints true after repeated make-and-break.
SetsComplete matched sets
Bit, rod, shank adapter and coupling sleeve quoted, checked and packed as one drilling set for a single machine.
What we hold, and what we cut to your drawing
Dimensions below are the standard band. Non-standard diameters, lengths and threads are made to drawing — send the old part and we work from it.
| Product | Size | Thread / interface | Material | Packing |
|---|---|---|---|---|
| Drill bit (cross / three-wing) | Ø28–120 mm | T38 · R38 · T32 · R32 | 45# steel, YG8 inserts | Wooden case |
| Button drill bit | Ø32–120 mm | T38 · R38 · T32 · R32 | 45# / alloy steel, YG8 buttons | Wooden case |
| Drill rod | Body Ø32 / 38 mm | Male and female, matched pair | 45# quenched & tempered / 42CrMo | Steel-strapped bundle |
| Shank adapter | Hex to machine chuck | To rod thread | 42CrMo, hardened | Wrapped, boxed |
| Coupling sleeve | Full-length thread | To rod thread | 45# / alloy steel | Bundle |
| Complete drilling set | Matched to machine | Matched across the set | Mixed, documented | Crate |
From your conditions to a crate on the floor
We do not quote a bit on its own. Tell us the taphole diameter, rod length, thread and clay, and the quote covers the parts that have to fit together.
- Conditions first — diameter, length, thread, tapping frequency, clay condition.
- Drawing or sample — a photo of the worn part is usually enough to match a thread or a hex.
- Batch record — hardness and straightness recorded per batch and shipped with the crate.
Tell us the machine
Chuck type, rod thread, taphole diameter and the length you run today. A photo of the worn part saves a drawing.
We propose the set
Bit style, rod body, shank adapter and coupling, with the interfaces matched and the batch lead time stated.
Production and packing
Machining, brazing, thread gauging, then wooden case or steel-strapped bundle, with the batch record inside.
Ordering practicalities
Can I order a single set to test?
Yes. A trial set of bit, rod, shank adapter and coupling is the usual way a new customer starts, and it is quoted together with the production batch price so you can compare.
Do you make non-standard threads and lengths?
We do. Send the drawing, or the worn part itself, and we cut to it. If only one element is non-standard, we keep the rest of the set standard so spares stay available.
What is the lead time?
It depends on the batch and on whether the thread is standard for us. The lead time is stated in the offer, together with the packing method, so there is no separate surprise at shipment.
How are the parts packed?
Bits in wooden cases, rods in steel-strapped bundles, small parts wrapped and boxed. Mixed sets are packed as one crate with a packing list that matches the batch record.
Tell us what your taphole drill runs today
Diameter, rod length, thread type and clay condition. We reply with the matched bit, rod, shank adapter and coupling sleeve combination, and the batch lead time.
Shandong Feiteng Metal Products Co., Ltd. · Tai’an, China