Description
The Hole Expander Series covers a broad range of sizes from 36mm up to 172mm, designed to accommodate diverse drilling requirements in mining and geological exploration. Available in multiple series—BQ, NQ, HQ, PQ, SQ, along with specialized types including BTW, NWT, and HTW—the expanders deliver adaptable solutions for hole enlargement and precise borehole diameter control.
Manufactured with premium-grade polycrystalline diamond and alloy materials, these expanders combine exceptional hardness with wear resistance, extending tool life even under the most demanding drilling conditions. The incorporation of advanced diamond technology ensures efficient cutting performance, maintaining high penetration rates while minimizing operational costs.
Complemented by T2, T6, B, and M series variants, this product line provides engineers with flexible options tailored for various rock formations and drilling rigs. Their robust construction and optimized design facilitate stable expansion of boreholes, critical for effective extraction and subsurface analysis.
Ideal for drilling contractors and geological engineers, this hole expander series offers precise dimensional control, operational reliability, and material resilience—key factors for achieving project success in challenging environments.