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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
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Description
✨🏆50% discount🏆High Hardness Spiral Flute Step Drill Bit SetFEATURES MODULAR MASTERY: Slash your tool inventory with 3 split drill bits that replace 29 standard bits. Each 1mm incremental step (432mm range) handles precise hole sizing without swapping tools, ideal for steel beams, pipes, and sheet metal. INDUSTRIAL GRADE EDGE RETENTION: Tungsten carbide coating maintains razor sharpness through 5x more cycles than standard bits. The spiral design distributes heat evenly, preventing warping even at 1,500 RPM in
FEATURES
MODULAR MASTERY: Slash your tool inventory with 3 split drill bits that replace 29 standard bits. Each 1mm incremental step (4–32mm range) handles precise hole sizing without swapping tools, ideal for steel beams, pipes, and sheet metal.
INDUSTRIAL-GRADE EDGE RETENTION: Tungsten-carbide coating maintains razor sharpness through 5x more cycles than standard bits. The spiral design distributes heat evenly, preventing warping even at 1,500 RPM in stainless steel.
SMARTER CHIP EVACUATION: Optimized helical grooves reduce cutting resistance by 40% vs. 2-flute designs. Continuous spiral channels eject debris instantly, eliminating clogging during deep drilling in copper or aluminum.
SHANK THAT OUTLASTS WORKLOADS: 30% thicker hexagonal shanks resist torsional stress during high-torque drilling. Compatible with bench drills (3/8"–1/2" chucks) and impact wrenches up to 650 lb-in torque.
UNIVERSAL METAL DOMINATION: Laser-hardened cutting edges chew through hardened steel (HRC 45+), cast iron, and aerospace-grade aluminum without chipping. Includes diameter markings for quick size verification mid-task.
SPEC
Material: Alloy
Flute Types: 4-flute (14–32mm), 2-flute (4–14mm)
Compatible with: Bench Drills, Electric Wrenches, Hand Drills
Scope of Application: Stainless Steel, Iron, Steel, Copper, Aluminum
Package Includes: 1* High Hardness Spiral Flute Step Drill Bit Set
NOTES
Before using the drill, set it to low speed. Lower speed for larger diameters (≤800 RPM).
Use continuous cooling during operation. Check method if each step exceeds 20 seconds.
Please allow a small error due to manual measurement. Please make sure you do not mind before purchasing.
Store in anti-corrosion case when not in use.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy