TA-VIGOR 2Pcs 7mm Straight Shank Twist Drill Bit, High Speed Steel M35 Cobalt Twist Drill Bit with 7mm Shank for Drilling Tool Stainless Steel Metal Plastic Wood

【Size & Package】Cutting Edge Diameter : 7mm / 0.28"; Shank Diameter : 7mm / 0.28"; Cutting Edge Length: 70mm / 2.76"; Total Length : 110mm / 4.33"; Package includes 2pcs 7mm straight shank twist drill bit. 【High Speed Steel】Made of HSS cobalt material, the drill bit is hard enough, anti-bending and will not fracture easily. The surface coating can better protect the drill bit sets from corrosion and expand their longlife. 【Straight Shank】Round shank is suitable for a wide variety of toolholding systems. Universal flute and overall length allow minimal adjustment during work. 【Double Cutting Edge】 The sharp cutting edge promotes faster as well as preciser drilling. Its spiral flute assure fast heat dissipation, protecting the twist drill bit from high temperature damage and getting rid of glitches or scrap. 【Wide Applications】Our twist drill bits have various sizes and can meet your needs for drilling glass, stainless steel, metal and wood materials, etc.. They can be clamped to manual and electric drilling tools, widely used in household or processing industries. When it cannot penetrate, try to adjust the RPM.