Chiloskit M35 Cobalt Spiral Grooved Industrial Unibit Step Drill Bits Stainless Steel Metal Woodworking Hole Drilling Tool Bit, Set of 5

Chiloskit M35 Cobalt Spiral Grooved Industrial Unibit Step Drill Bits Stainless Steel Metal Woodworking Hole Drilling Tool Bit, Set of 5

• Easily drills on iron sheets, stainless steel sheets, steel sheets as well as aluminum sheets.Revolutionary spiral flute design to minimize the flying metal ashes, making the drilling process as well as the hole significantly smoother.
• You can use water to cooling it when it is work and it can be used for even longer.Universal Compatibility ----- Designed for drilling on steel sheets up to 0.08 in., acrylic, PVC and wooden boards up to 0.2 in.; marked with obvious marks for easy and precise hole drilling, compatible with drills
• Solid M35 molybdenum high speed construction with cobalt added for extra durability, close to impossible to snap compared conventional drill bits, the unique 3-sided shank prevents slip in drill chuck and reduces shocks; oiling the bits recommended before every use to maximize the service life.
• Suit for use in hardness under 28 artifacts,(Such as: Stainless steel , iron plate, aluminum, wood )No need of center punch.Compared with the ordinary twist drill,it is not easy to break and it can be used for deburring, chamfering and open hole on Wood metal plastic。
• Material: M35(HSS-Co).Size :4-32mm,6-24mm,4-22mm,3-12mm,4-12mm