Helical Step Drill
High Performance Drilling
- Proprietary step design eliminates delamination and/or burr on exit
- Improved hole finish
- Can be used in composite and metal stacked materials
- Made from solid carbide and coated for optimal tool life
- For use in both hand and CNC operations
Helical Step Drill
| Size | D1 | 4'' Reference | 4'' Tool # | 4'' Price | 6'' Reference | 6'' Tool # | 6'' Price |
|---|---|---|---|---|---|---|---|
| #40 | 0.0980 | STDRMR0980C0-4 | C85367 | $46.15 | STDRMR0980C0-6 | C77209 | $50.50 |
| 1/8 | 0.1250 | STDRMR1250C0-4 | C87870 | $47.60 | STDRMR1250C0-6 | C40706 | $54.80 |
| #30 | 0.1285 | STDRMR1285C0-4 | C59188 | $47.60 | STDRMR1285C0-6 | C50598 | $49.75 |
| 9/64 | 0.1406 | STDRMR1406C0-4 | C88163 | $51.95 | STDRMR1406C0-6 | C56849 | $56.25 |
| 5/32 | 0.1563 | STDRMR1563C0-4 | C13592 | $52.65 | STDRMR1563C0-6 | C49695 | $57.35 |
| #21 | 0.1590 | STDRMR1590C0-4 | C95375 | $50.85 | STDRMR1590C0-6 | C88311 | $56.60 |
| #20 | 0.1610 | STDRMR1610C0-4 | C58644 | $54.10 | STDRMR1610C0-6 | C55115 | $59.85 |
| 11/64 | 0.1719 | STDRMR1719C0-4 | C14086 | $54.10 | STDRMR1719C0-6 | C76710 | $59.85 |
| 3/16 | 0.1875 | STDRMR1875C0-4 | C35105 | $55.55 | STDRMR1875C0-6 | C73884 | $62.05 |
| #11 | 0.1910 | STDRMR1910C0-4 | C11419 | $49.05 | STDRMR1910C0-6 | C46027 | $56.25 |
| #10 | 0.1935 | STDRMR1935C0-4 | C63230 | $50.85 | STDRMR1935C0-6 | C37453 | $62.05 |
| #8 | 0.1990 | STDRMR1990C0-4 | C58002 | $57.00 | STDRMR1990C0-6 | C32738 | $64.20 |
| #7 | 0.2010 | STDRMR2010C0-4 | C58438 | $57.00 | STDRMR2010C0-6 | C47246 | $64.20 |
| 13/64 | 0.2031 | STDRMR2031C0-4 | C87145 | $57.00 | STDRMR2031C0-6 | C60809 | $64.20 |
| 7/32 | 0.2188 | STDRMR2188C0-4 | C69648 | $58.45 | STDRMR2188C0-6 | C17496 | $66.35 |
| #1 | 0.2280 | STDRMR2280C0-4 | C54043 | $58.45 | STDRMR2280C0-6 | C90546 | $66.00 |
| A | 0.2340 | STDRMR2340C0-4 | C91646 | $58.45 | STDRMR2340C0-6 | C88811 | $66.00 |
| B | 0.2380 | STDRMR2380C0-4 | C11985 | $61.30 | STDRMR2380C0-6 | C54115 | $70.30 |
| 1/4 | 0.2500 | STDRMR2500C0-4 | C72507 | $57.70 | STDRMR2500C0-6 | C45128 | $67.45 |
