0:17
ZHMAX-7 · 28 mm
Gray granite
2026-09-09View evidence
Product geometry test program
Multi-Cutter (Primary Blade + Side Cutters) · ZHMAX-7 Geometry
ZHMAX-7 puts the hammer's energy behind one primary blade instead of splitting it across four symmetrical wings. The primary blade drives the fracture, the two side cutters open the bore to diameter, and the open head geometry gives the cuttings a clear path to the flutes.
Product
Zhonghuan ZHMAX-7 SDS-Max 28 × 570 mm Drill Bit
Internal code
ZHMAX-7
Diameter / shank
28 mm / SDS-Max
Evidence in topic
1 substrate videos
ZHMAX-7 head architecture
Multi-Cutter (Primary Blade + Side Cutters) · ZHMAX-7 Geometry
ZHMAX-7 puts the hammer's energy behind one primary blade instead of splitting it across four symmetrical wings. The primary blade drives the fracture, the two side cutters open the bore to diameter, and the open head geometry gives the cuttings a clear path to the flutes.
1 primary blade2 side cuttersOpen debris path
SDS-Max · ZHMAX-7
Drilling records by substrate
1 videos
These records show how the featured geometry drills granite. Send your target substrate, diameter and working depth and we will arrange a sample evaluation for your project.
Evaluate ZHMAX-7
Review the SDS-Max range, or ask for ZHMAX-7 samples and run them on your own stone.