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Aug. 26, 2026
We carried out a side-by-side field benchmark test against leading competing brands at a large-scale tunnel project in China. All tests were conducted on the same tunnel face with matching equipment and unified operation standards, and all test data was sourced straight from on-site construction logs.
Drill Bit Performance
Two JSI drill bits delivered 6 full shifts of service with a total drilling footage of 1,580 meters. Both bits maintained a uniform 3-shift wear life, enabling predictable replacement cycles and zero unplanned downtime.
Drill Rod Performance
JSI drill rods topped the test rankings, achieving 21 consecutive operating shifts and 4,700 meters of total drilling footage — with zero failures or breakdowns throughout the trial.
Field-tested on real construction sites, JSI Rock tools deliver durable, efficient and reliable performance for your all tunneling works.
