M35 high-speed steel cobalt drill bit set. Twisted bits. Metric metal case for drilling wood. Stainless steel.

s: M35 Cobalt Drill Bit Set HSS-Co Jobber Length Twist Drill Bits with Metal Case for Drilling Stainless Steel Wood Metal Specifications:

Product Name

M35 Cobalt Twist Drill Bit Set

Material HSS-Co M35 Cobalt

Size (optional) 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. 10.0mm 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 Metric Measurement System Shank Type Straight Shank
Quantity 13/19/25PCS + Metal Case Diameter (mm) Total Length (mm) Working Length (mm) Suggested RPM 1 34 12 3000 1.5 39 17 2400 2 48 22 1800 2.5 55 30 1600 3 62 33 1400 3.5 69 38 1200 4 74 44 1000 4.5 79 48 900
5 86 52 800 5.5 93 58 750 6 93 58 700 6.5 100 64 650 7 109 7 0 600 7.5 109 70 550 8 116 75 500 8.5 116 75 450 9 125 83 400 9.5 125 83 325 10 133 90 350

Note: Cobalt drill bits require a slow speed when drilling metal. The suggested RPM is for reference only. It may vary depending on the material. You can start at a lower RPM and slowly increase it. Once the drill bit can enter the workpiece, the speed should be stopped. Features:

● Cobalt M35. 5% cobalt added for higher hardness and heat resistance. Rockwell hardness is up to 67. It can cut faster and has a long service life. Up to 12 times faster than the average HSS drill bit

● Self-centering. The 135° cutting guide split point is self-centering, allowing for fast penetration with less pressure. The straight handle can be securely fixed and precisely centered, making it suitable for standard and conventional round chucks.

● Efficient drilling without walking. Remove chips and particles more easily and quickly.

● Lowest cost per hole drilled. The solid cobalt steel drill body can be sharpened.

● Slotted point. Drill directly to the required size without pre-drilling.

● Fully ground. Robust, fully ground construction for minimal burrs and precise diameter.

● Metal bits. Suitable for drilling unheat-treated metals. with a hardness below HRC38, such as stainless steel, copper, galvanized pipes, iron, and aluminum alloy. Not suitable for hardened steel/high-carbon steel. If penetration is not possible, try adjusting the speed. Package includes: 13/19/25 PCS M35 Cobalt Drill Bit Set, 1 PC Metal Case. More details: