DelitonGude 5 Pcs Step Drill Bits,High Speed Steel,Titanium Coating,50 Sizes Unibit Drill Bits Set,Multiple Hole Stepped Up Bits for Metal, Aluminum,

DelitonGude 5 Pcs Step Drill Bits,High Speed Steel,Titanium Coating,50 Sizes Unibit Drill Bits Set,Multiple Hole Stepped Up Bits for Metal, Aluminum,

Selected 4241HSS Steel And Titanium Coating: Our step drill has excellent sharpness and extreme durability due to its high speed steel material and titanium coating 50 Sizes in 5 Pcs: Our step drill bit set includes 5 standard pieces with totally 50 sizes for versatility, You are capable to drill holes in different sizes which can meet your normal needs and enough for your DIY needs 118° Split Point Tip: You can smooth Drilling,The tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc which the board must be smaller in thickness than the height of step drill bits Dual-flute Design:Smooth chip removal improves your work efficiency Beautiful aluminum case package:Step drill bits come in a well-organized case for easy transport and storage .You will relly surprised by nice aluminum case bits are in DelitonGude makes premium quality, professional tools, superior service that wish to make your life more convenient and better!
Specifications:
Size:50 sizes.
Includes:5 step drill bits.
Material: High Speed Steel.
Angle Point: 118 Degree.
Shank Type: Straight and Round Shank.
Packing:box.
Features:
1.Made from High Speed Steel ,which increases wear-resistance,durability and extra longer life span.
2.Fully ground spiral groove design clears particles quickly,decreases friction and heat for faster drilling performance.
3.118°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure.Straight shank prevents walking and makes drilling precise and faster.
4.Suitable for drilling holes as Steel,Copper,Cast Iron,Galvanized Pipe,Aluminum Alloy,Wood and Other Softer Metals. If drill stainless steel, please lower the drill speed.
5.This drill bit fits the majority of power drill currently on the market and easy storage and DIY.
Instuctions for use:
1.Keep the drill bits vertical to the object when drilling, Be sure to make both bit and work piece stable. Tilted bit is prone to break during drilling.
2.Be careful when you use an electric drill.Please start from the lowest RPM and pressure.
3.Drilling metal will accumulate an amount of heat. Necessary to use cooling liquid during drilling to keep the bit cool. Both ok to use lubricant oil and to pour water.
4.It's highly recommended that you use a drill press to drill thick metals.
5.Always wear safety goggles and safety items, because it's safe for you.