About This

• 【Versatile 50 Sizes Step Drill Bit Set】1/4"-1-3/8"(stepped by 1/8"), 3/16"-7/8"(stepped by 1/16"), 1/4"-3/4"(stepped by 1/16"), 1/8"-1/2"(stepped by 1/32"), 3/16“-1/2”(stepped by 1/16“). Universal 3/8" Tri-Flatted Shank prevents breaking.
• 【Durable M35 (5% Cobalt) Material and TiAlN Coating】Enhanced wear resistance, good toughness and hardness, superior hot hardness (red hardness). TiAlN Coating deliver 3x long life span in cutting hard material.
• 【Unique 3-sided Grinding Blade Design】Ensure 10x Drilling Stability, especially when switching steps. Provide smooth cutting and reduce impact, suitable for drill driver. Still recommended to use the auxiliary handle.
• 【Ground Step by Step】Compare to grinding teeth on multiple steps, provide higher precision and sharpness of each step.
• 【Versatile Applications】High drilling stability ensures smooth drilling on Stainless Steel, High Carbon Steel, Hard Material and Sheet Metal.

Overview

• Material : High Speed Steel (HSS)-M35
• Finish Type : Titanium Aluminum Nitride
• Shank Type : 3-Flat
• Brand : ANGELSWORD
• Tool Flute Type : Straight