M35 Cobalt Drill Bit Set - HSS-Co Twist Bits for Stainless Steel, Wood, Metal with Metal Case - Drillpro Jobber Length

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Drillpro M35 Cobalt Drill Bit Set Product Details Product Name: Drillpro M35 Cobalt Twist Drill Bits Set Brand: Drillpro Material: HSS-Co M35 Cobalt Case Type: Random Measurement S ystem: Metric Shank Type: Straight Shank Available Sizes 13PCS: 1.5, 2.0, 2.5, 3.0, 3.2, 3.5, 4.0, 4.5, 4.8, 5.0, 5.5, 6.0, 6.5 mm 19PCS: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0 mm 25PCS: 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0 mm Quantity: Available in sets of 13/19/25 pieces with a metal case Suggested RPM for Drill Sizes (in mm) Diameter (mm) Total Length (mm) Working Length (mm) Suggested RPM 1.0 34 12 3000 1.5 39 17 2400 2.0 48 22 1800 2.5 55 30 1600 3.0 62 33 1400 3.5 69 38 1200 4.0 74 44 1000 4.5 79 48 900 5.0 86 52 800 6.0 93 58 700 6.5 100 64 650 7.0 109 70 600 8.0 116 75 500 9.0 125 83 400 10.0 133 90 350 Note: Cobalt drill bits require a slower RPM when drilling metals. The suggested RPM is for reference. Start from a lower RPM and gradually increase. Once the bit penetrates the workpiece, stop adjusting. Features M35 cobalt with 5% cobalt for higher hardness and heat resistance. Rockwell hardness up to 67. Long-lasting, up to 12 times compared to average HSS bits. Self-centering with a 135° rapid cutting point for easy penetration with less pressure. Straight handle ensures firm and precise fit. Efficient drilling with minimal walking, removing chips faster. Resharpenable solid cobalt steel drill body offers the lowest cost per hole. Split point allows drilling directly to the required size without pre-drilling. Fully ground heavy-duty body construction for minimal burr and accurate diameter. Ideal for non-heat treated metals with hardness less than HRC38, like stainless steel, copper, cast iron, and aluminum alloy. Not suitable for hardened/high carbon steel. Adjust drilling speed if penetration fails. Package Includes 13 / 19 / 25 PCS Drillpro M35 Cobalt Drill Bit Set 1 Metal Case Show more