About this item

• DURABLE MATERIAL: ALDIPRO step drill bit made with M2 high speed steel material and advanced industrial-grade nitride coating. Our drill bit has excellent heat -resistant, anti-wear and anti -corrosion function, and improves the hardness of the drill. Compared with other step bit, it is superior in hardness and longer in service life.
• FOUR SPIRAL FLUTE: Four cutting blades design guarantees a faster and smoother cutting. Prevents metal scurf from flyingaround for improved safety.
• 9 STEP SIZES: Includes 1/4"£¬5/16"£¬3/8"£¬7/16"£¬1/2"£¬9/16"£¬5/8"£¬11/16"£¬3/4". It's an essential addition to any DIY enthusiast's toolbox and can be utilized for a wide range of household projects.
• SUPERIOR PERFORMANCE: Our Step drill bits feature a precision split point with a 135-degree, more precise positioning and prevents walking. 1/4" hex shank is compatible with most drills and impact drivers. Great universal fit for quick change,anti-slip, firm and not loose.
• DEDICATED CUSTOMER SERVICE: While our products undergo stringent quality inspections, unforeseen issues caused by accidental factors may occur. If you are not satisfied with the quality, you can contact us any time.