RS PRO High-Speed Steel Step Drill Bit 8 to 20 mm, 69 mm Overall Length, Hex Shank, Bright Finish 423-866

RS PRO 423-866 is a professional high-speed steel step drill bit ranging from 8 mm to 20 mm in diameter with an overall length of 69 mm. Designed with a hex shank for reliable grip, the bit is suitable for drilling various-sized holes efficiently and accurately in metal and other hard materials.

Manufactured from high-speed steel (HSS), this drill bit provides excellent durability and heat resistance during intensive drilling applications. The bright finish enhances corrosion resistance, extending tool life.

The step drill bit design incorporates seven distinct drilling steps, allowing users to drill holes in a wide size range without changing bits, improving productivity in mechanical workshops, manufacturing, and maintenance tasks.

Its hex shank with a size of 7.15 mm ensures stable holding in three-jaw chucks, reducing slippage and improving safety during operation.

This product adheres to electrostatic discharge standards including ANSI/ESD S20.20:2014 and BS EN 61340-5-1:2007, making it suitable for sensitive electronic manufacturing and repair environments.

Constructed from durable high-speed steel (HSS) for durability and high temperature resistance. Seven stepped diameters from 8 mm to 20 mm enable versatile drilling sizes. Hex shank design with 7.15 mm size ensures solid chuck grip and reduced slippage.

Overall length of 69 mm allows for deep drilling applications. Bright finish enhances corrosion resistance. Conforms to ANSI and European ESD electrostatic discharge standards.

This RS PRO specialist drill bit is ideal for industrial workshops, manufacturing plants, mechanical maintenance, and laboratories requiring precise and durable step drilling solutions. Its versatile size range and hardened steel construction provide value across numerous metalworking and electrical applications.

Explore EnvMart’s comprehensive range of Specialist Drill Bits for advanced industrial and commercial use cases.