Description
【High Speed Steel】1/4" drill bits 12pcs for metal made from W4 High Speed Steel , which increases wear-resistance, durability and extra longer life span, so that the drill bits last through multiple uses..【135° Split Point】135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. Straight shank of this cobalt steel drill bit allows for firmly holding and accurate centering and makes drilling precise and faster.【Fully Ground Process】Fully ground spiral groove design clears particles quickly, decreases friction and heat for faster drilling performance.【Wide Applications】Our drill bits are suitable for general-purpose use in steel, copper, aluminum, zinc alloy, iron, wood and plastics. And a wide range of applications such as repair, construction or woodworking..【24-Hour After-Sales Service】If you have any questions about the product, please contact us in time. We will reply to you within 24 hours.
