SUBORUI
| Availability: | |
|---|---|
| Quantity: | |
Upgrade your industrial tool catalog with our Industrial-Grade Step-Point Twist Drill Bits. Engineered with a revolutionary multi-stage "Pagoda-style" tip, these bits combine the precision of a step drill with the deep-reaching capability of a standard twist drill. Designed specifically for high-efficiency metalwork, they eliminate the need for center punching or pilot holes, significantly reducing operation time for professional fabricators.
Unlike traditional 118° or 135° split points, our Stepped Tip design features multiple graduated cutting edges at the point. This provides:
Instant Self-Centering: The "tip-within-a-tip" prevents walking on smooth metal surfaces.
Multistage Cutting: The steps act as mini-cutters that gradually enlarge the hole, reducing torque requirements and preventing bit breakage.
Built-in Deburring: The stepped shoulder automatically smooths the hole entry as it drills, leaving a clean, professional finish.
Optimized for Tough Metals: Premium High-Speed Steel (HSS/HSS-Co) construction makes these bits ideal for Stainless Steel, Alloy Steel, Cast Iron, and Aluminum.
Rapid Chip Evacuation: High-volume parabolic flutes ensure fast removal of metal shavings, preventing heat buildup and extending tool life in high-speed CNC or manual operations.
3-Flat / Round Shank Design: Depending on the model, the shank is engineered to prevent slipping in the chuck, ensuring maximum power transfer.
Extreme Durability: Heat-treated to HRC 63-66 for superior wear resistance, reducing the "Cost Per Hole" for large-scale manufacturing projects.
| Diameter (mm) | Flute Length (mm) | Total Length (mm) | Shank Type | Material Options |
|---|---|---|---|---|
| 1.0 | 12 | 34 | Straight Round | HSS / HSS-Co M35 |
| 2.0 | 24 | 49 | Straight Round | HSS / HSS-Co M35 |
| 3.0 | 33 | 61 | Straight Round | HSS / HSS-Co M35 |
| 4.0 | 43 | 75 | Straight Round | HSS / HSS-Co M35 |
| 5.0 | 52 | 86 | Straight Round | HSS / HSS-Co M35 |
| 6.0 | 57 | 93 | Straight Round / 3-Flat | HSS / HSS-Co M35 |
| 7.0 | 69 | 109 | Straight Round / 3-Flat | HSS / HSS-Co M35 |
| 8.0 | 75 | 117 | Straight Round / 3-Flat | HSS / HSS-Co M35 |
| 9.0 | 81 | 125 | Straight Round / 3-Flat | HSS / HSS-Co M35 |
| 10.0 | 87 | 133 | Straight Round / 3-Flat | HSS / HSS-Co M35 |
| 11.0 | 94 | 142 | Straight Round / 3-Flat | HSS / HSS-Co M35 |
| 12.0 | 101 | 151 | Straight Round / 3-Flat | HSS / HSS-Co M35 |
| 13.0 | 101 | 151 | Straight Round / 3-Flat | HSS / HSS-Co M35 |
