Hertel H95006218 Jobber Drill Bit Letter S Hss

Product Description

The HERTEL H95006218 is a Letter S jobber-length drill bit designed for production and maintenance holemaking in metal, wood, and general-purpose materials. Built from high speed steel with an oxide and TiN coating, it delivers extended tool life compared to uncoated HSS. The 137-degree split point reduces walking on entry and lowers required thrust force, making it well-suited for hand-held drills and drill presses alike. At 4-7/8 inches overall length with a 2-1/2 inch flute length, it fits standard jobber-length chucks and drill drivers used in trade and industrial settings. Two spiral flutes with a regular helix clear chips efficiently during through-hole operations.

This bit is intended for holemaking tasks across industrial, mechanical, HVAC, plumbing, and electrical trade applications where a Letter S diameter of 0.3480 inches is required. Typical use cases include drilling pilot holes, clearance holes, and access holes in ferrous and non-ferrous materials. Its heavy-duty grade construction makes it appropriate for repetitive production runs as well as intermittent service work. Three flats on the shank resist slipping in standard drill chucks.

Key Features

• Letter S diameter — 0.3480 inches decimal equivalent for precise sizing
• 137-degree split point reduces drill walk and lowers feed pressure
• High speed steel construction with oxide and TiN coating for extended wear resistance
• Heavy-duty grade rating suitable for production holemaking
• Regular spiral flute with right-hand cutting direction for standard drill equipment
• 3-flat shank prevents slipping in drill chucks

Compatibility

Designed as a standard jobber-length drill bit compatible with any 3-jaw drill chuck or drill press accepting a 0.3480-inch shank in ANSI jobber-series tooling.

Installation Notes

This bit is installed and operated by machinists, maintenance technicians, pipefitters, electricians, and other trades requiring precision holemaking. Secure the shank firmly in a properly sized drill chuck before operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Use appropriate cutting fluid or coolant for ferrous materials to maximize bit life and maintain hole quality.