GREENER 10pcs M35 Cobalt Auger Bit Set Double-headed Double-edged Twist Drill Bits for Steel Wood Drilling

Specifications MaterialS2 M35 Contains CobaltSize3 0mm 3 2mm 3 5mm 4 0mm 4 2mm 4 5mm 5 0mm 5 2mm 6 0mm Optional Quantity10pcsFeaturesAnti slip wear resistant high hardness not easy to rustApplicationWood Aluminum Alloy Zinc Alloy Steel Iron Stainless SteelScope of userechargeable drill electric hand drill hand drill Air Screwdriver automatic screwdriver etc Length mm Bit Edge LengthDiameter3 046 8103 03 248 9153 23 551 7143 54 054 9164 04 254 3164 24 555 2164 55 056 1165 05 256 8165 25 558 0165 56 066 0166 0Feature Surface roasting process is not easy to rust Using optimal steel the hardness is as high as HRC64 Double head can be used save money and time Spiral big U slot the cutter head is sharp and not easy to stick to chips Electric drill processing operation tips 1 When drilling the drill bit and the stainless steel plate are perpendicular to 90° 2 If the hole is larger than 6mm use 3 2mm 4mm drill bit to drill small holes and then ream the hole with a large drill bit 3 The electric drill chuck must clamp the double head drill and the exposed part should be as short as possible The cutting edge of the drill bit does not need to be too sharp 4 The speed of electric drill should be between 800 1500rpm 5 It is recommended to drill a hole ≤15 deep Pack Included Size Optional 10 x Twist Drill