Cobalt Drill Bit Set- 13Pcs M35 High Speed Steel 1/16"-1/4" KF10 Cleaning the air stone surface

Cleaning the air stone surface often will increase its lifespan

Range: 0-1/2"

Pure food grade diatomaceous earth can be used for a large number of different purposes

and Sight Glass Flow Indicators provide a full 360 to observe fluid flow in any direction

[Quality Materials]: The Jacketed Spool is made of high quality 304 stainless steel

Cobalt Drill Bit Set- 13Pcs M35 High Speed Steel 1/16"-1/4" KF10 Cleaning the air stone surface[PREIMUM QUALITY]: Material: HSS with 5% cobalt: durable, higher heat resistance and wear resistance. [ACCURATE]: 135?? split point and twist design: prevent walking and remove debris and particles faster. [WIDE APPLICATIONS]: M35 Cobalt HSS is more suitable for hardening materials. Especially suitable for cutting hard metals, such as stainless steel, cast iron, high temperature alloys, titanium alloys, hard plastics and wood, but also for softer