Pilot bits

Tri-Mach offers a wide range of pilot drill bits that are widely used in rock drilling.

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Main advantages
  • A wide selection of standard connections for all types of pneumatic hammers
  • Sizes from 114mm to 1524mm (production is possible according to the customer’s technical requirements*)
  • Two-section Thru-Shank design of the pilot bit for large diameters, which allows the most efficient use of the shank
  • Made of the most durable material
  • Reliable locking system that prevents jamming or loosening of the ring bit and puncture of the pilot bit through the ring bit
  • The patented Radial Flush system technology, which allows very efficient flushing of the face during drilling
  • The most reliable fixation and optimal location of the carbide buttons
Specifications
  • Solitary system
  • Integrated system
Pile Pilot bit Ring bit Pile
Outside Ø, mm Outside Ø, mm Outside Ø, mm Max. Pile thiness, мм
114,3 93 125 10,0
139,7 117
151 10,0
152,4 130 163 10,0
168,3 140 179 12,7
177,8 150 188 12,7
193,7 165 206
12,7
219,1 191 231
12,7
244,5 216 258
12,7
273,0 245 291 12,7
323,9 292 339 12,7
355,9 327 371 12,7
406,4 378 420
12,7
457,2 429 471 12,7
508,0 479 526 12,7
558,8 530 577 12,7
609,6 581 628 12,7
609,6 574 628 16,0
660,4 632
680 12,7
660,4 625 680 16,0
711,2 674 730 16,0
762,0 712 782 16,0
812,8 776 835 16,0
914,4 875 938 16,0
1016,0 972 1040
18,0
1219,0 1169 1244 20,0
1321,0 1281 1346 24,0
1422,0 1377 1447 24,0
1524,0 1474
1554
24,0
Pile Pilot bit Ring bit Pile
Outside Ø, mm Outside Ø, mm Outside Ø, mm Max. Pile thiness, мм
114,3 93 126 10,0
139,7 117
151 10,0
152,4 130
164 10,0
168,3 140 180 12,7
177,8 150 189 12,7
193,7 165 206 12,7
219,1 191 231 12,7
244,5 216 259 12,7
273,0 245 288 12,7
323,9 295 339 14,2
355,9 327 371 12,7
406,4 378 422 12,7
457,2 424 475 12,7
508,0 472 526 12,7
558,8 523 577 12,7
609,6 574 628
12,7
660,4 624
680
12,7
711,2 674 730
16,0
762,0 712 782 16,0
812,8 775 833 16,0
914,4 875
936 16,0
1016,0 972 1038 18,0
1219,0 1169 1243 20,0
1321,0 1281 1346 24,0
1422,0 1377 1447 24,0
1524,0 1474
1554 24,0
Mask group
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Exclusion of puncture of the annular crown

We know the problem of piercing the annular crown with a pilot chisel, because we have considerable experience as a drilling contractor and have repeatedly encountered this problem when using the equipment of our competitors. To eliminate this problem, we have developed a reliable locking system with a two-step ledge. This problem is excluded on our equipment.

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A wide selection of pilot bits

Tri-Mach offers a wide selection of standard shanks for all types of pneumatic hammers Available in sizes from 114 mm to 1524 mm, but it is possible to manufacture in accordance with the customer’s technical requirements.

All products are made of the most durable material.

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Unique technology

The patented technology of the Radial Flush System allows you to wash the face very efficiently during drilling.

A reliable locking system that prevents jamming or loosening of the crown and puncture of the pilot bit through the ring bit.

Pilot bits
Pilot bits
Pilot bits
Pilot bits
Pilot bits
Pilot bits
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