Royal Apex 19 Piece’s HSS Twist Drill Bit Fully Ground – White Finish 431 Meterial-DIN338 Drill Bit for Stainless Steel Metal Drilling.

【High Quality】- The drill bit sets main material is high-speed steel. High speed steel is more abrasion resistant and durable than other metal materials.
【Extremely Heat Resistant】- Twist bit must be used and operated over 1500 rpm to achieve maximum efficiency. The straight handle can be firmly fixed and accurately centered, which is suitable for standard drill chuck and common round chuck.
【Special Practical Design】- Easy to fix and precisely machine, saving time and improving work efficiency. Economic choice for home DIY, building and engineering use etc.
【19 Different Kinds of Size】- The set includes 13pcs of M35 cobalt steel twist drill bits: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm 19Pcs Packed in a Plastic Bag .Meet all your need.
【Wide Application】- Drilling Steel, Stainless Steel, Hard Metal and Iron.Particularly successful in cutting through hard metals such as hard metal ,stainless steel and cast iron, although they can be used for softer materials, too.