Rannb Twist Drill Bit Straight Shank for Electrical Drilling Tool 7mm-0.28" Bit Dia 200mm-8" Length - 2pcs

Material High Speed Steel Dimension Bit Dia:7mm/0.28" Shank Dia:7mm/0.28" Total Length:200mm/8" Cutting Edge Length:135mm/5.3" Specification HRC: 62-63 Type : N Type 118 degree Package Content 2pcs x Twist Drill Bit How to Use 1. Ensure the left and right cutting edges of the drill are symmetrical when drilling. 2. Observe the uniformity of the spark while drilling, adjust the pressure in time, and pay attention to the cooling of the bit. ? Our Promise? Refund or replacement are guaranteed if the product you received has any problem. ? Welcome to Contact Us ? Your satisfation is our first priority. Rannb aims to provide our customers a happy shopping experience and completed After Sale Service. If you have any question to product, please feel free to contact us.