Product Detail
Step & Multi-Diameter Carbide Drills
Step/multi-diameter carbide drill series from feature stacks; distinct from PCD combination drill-reamers.
Series · Step / diameter stack
Step Carbide Drill Series — One Body, Many Diameters from the Section View
Step tools only make sense from the finished diameter stack and axial positions. PCD combination drill-reamers for precision aluminum multi-ops are a different family.
Bring a section or diameter table: pilot, major, chamfers, and which faces are critical. Cycle-time goals that “want one tool” still need stack tolerances—otherwise you get a compromise that fits none of the gauges.
Feature-stack jobs that belong here
- Multiple diameters and/or chamfers in one carbide body
- Section view or diameter stack available from the print
- Cycle-time goal favors one carbide path (not separate PCD ream)
- Material is suitable for carbide step drilling—not a PCD combo request
Different families
- PCD multi-op aluminum drill+ream → PCD combination drill-reamers
- Single-diameter holes → other carbide series via the hub
- Flat floor geometry as the only driver → flat-bottom series
Full configuration families, coatings, and inspection flow stay on the solid carbide drill page—not repeated here.
Stack data for step-tool quotes
- Diameter stack with tolerances and axial positions
- Chamfer vs sharp-edge requirements per step
- Material, volume, and holder length/runout limits
- Which diameter is gauge-critical vs clearance-only
- Current multi-tool sequence you hope to collapse
Step vs combination FAQ
Same as a PCD combination drill-reamer?
No. This series is carbide step drilling from a diameter stack. PCD combination tools integrate drill/ream for precision aluminum holemaking.
Can you invent steps from a photo?
No. Send dimensions and tolerances—photos alone are not a stack.
Must every step be tight?
Mark gauge-critical vs clearance diameters; that changes the review.
Section view ready for the stack?
Step quotes live or die on diameter positions and tolerances. Upload the stack with the RFQ.
SERIES FUNNEL (NO MERGE)
Compare step carbide drill vs combination drill-reamer before RFQ.