13Pcs Cobalt Steel Twist Drill Bits Set, M35 Metal Drill Bit for Steel, Cast Iron, Copper, Stainless Steel, Aluminum, Wood, Plas
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Brand Name: JaneDream
DIY Supplies: Woodworking
Type: Center Drill Bit
Use: Wood Drilling
Model Number: 307920
Material: High Speed Steel
Features: 13 Sizes Steel Drill Bits Set: The set includes 13pcs of M35 cobalt steel twist drill bits: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm, fits the majority of power drill currently on the market and come with a portable plastic bag for easy storage and organization.M35 Cobalt Steel: These drill bits also contain 5% Cobalt, which increases wear-resistance and durability for much faster cutting and extra longer life span.For Metalworking: Perfectly suitable for cutting stainless steel, die steel, aluminum alloy, cast iron, copper, galvanized pipe, plastic, wood or other softer/hard metals. × Not for glass, ceramic, high carbon steel, heat-treated steel or hardened steel.Twist Drill Bit Body: Fully Ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance.135° Split Point: 135° Quick-Cut Point with straight shank prevents ””walk”” or ””wander”” and makes drilling precise with less pressure. Fit for standard drill chucks and regular round collet chucks.Material: cobalt steelFeatures: high hardness, wear resistance, accurate positioning, good chip removal, high efficiencyApplication: stainless steel, die steel, aluminum alloy, cast iron, copper, galvanized pipe and other softer/hard metalsNot Application: glass, ceramic, high carbon steel, heat-treated steel, hardened steel etc. Specification: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm,6.5mm Specification: 1.5mmTotal Length: 40mmWorking Length: 18mmDiameter: 1.5mm Specification: 2mmTotal Length: 49mmWorking Length: 24mmDiameter: 2mm Specification: 2.5mmTotal Length: 57mmWorking Length: 30mmDiameter: 2.5mm Specification: 3mmTotal Length: 61mmWorking Length: 33mmDiameter: 3mm Specification: 3.2mmTotal Length: 65mmWorking Length: 35mmDiameter: 3.2mm Specification: 3.5mmTotal Length: 70mmWorking Length: 39mmDiameter: 3.5mm Specification: 4mmTotal Length: 75mmWorking Length: 43mmDiameter: 4mm Specification: 4.5mmTotal Length: 80mmWorking Length: 47mmDiameter: 4.5mm Specification: 4.8mmTotal Length: 85mmWorking Length: 51mmDiameter: 4.8mm Specification: 5mmTotal Length: 85mmWorking Length: 51mmDiameter: 5mm Specification: 5.5mmTotal Length: 93mmWorking Length: 57mmDiameter: 5.5mm Specification: 6mmTotal Length: 93mmWorking Length: 57mmDiameter: 6mm Specification: 6.5mmTotal Length: 100mmWorking Length: 63mmDiameter: 6.5mm Warm Tips:1. You shouldn’t drill deeper than 1/2 of the drill bit’s fluting length to have the best drilling performance.2. Don’t use these bits on hardened steel, high carbon steel and heat treated steel.3. Please keep the drill bit vertical with the surface of object to be drilled. And Ensure the stability of the drill and the workpiece, tilted bit is prone to break.4. Pay attention to the power of the charging drill. Too low power may make it impossible to drill.5. Drilling metal requires low RPM, it’s recommended to use a device of which the drilling speed below 1000RPM.6. To avoid breaking, thick metals are recommended to be drilled with drill press, which is more stable, and adjustable.7. Friction will accumulate heat between bits and work piece. Please be aware of the heat, add water or coolant during drilling to keep the bit cool if necessary.