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

Specification:

Note:

Cobalt drill bits require slow RPM when drilling metals. The suggested RPM is only for your reference. It may vary from different materials. You can start from a lower RPM and adjust it higher slowly. Once the bit can get into the workpiece. the adjustment should be stopped.

Features:

u25cf M35 cobalt. 5% cobalt added for higher hardness and heat-resitance. The Rockwell hardness is up to 67. It can cut faster and has a long life, up to 12 times compared with the average HSS bit.

u25cf Self centering. The guiding separation point of 135u00b0 rapid cutting is self centering, which can penetrate quickly with less pressure. The straight handle can be firmly fixed and accurately centered, which is suitable for standard bit chuck and conventional round chuck.

u25cf Efficient drilling without walking. Remove chips and particleseasier and faster.

u25cf The lowest cost per hole drilled. Solid cobalt steel drill bit body can be resharpened.

u25cf Split point. Drill directly to the size needed without pre-drilling

u25cf Fully ground. Heavy-duty fully ground body construction for minimal burr and accurate diameter.

u25cf Bits for metal. Suitable for drilling non-heat treated metals, of which the hardness is less than HRC38, such as stainless steel, copper cast iron, galvanized pipe, iron, and aluminum alloy. Not suitable for hardened steel / high carbon steel. If penetration is not possible, try adjusting the speed.

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