Hertel 2386753 Screw Machine Drill Bit 3/16 in Hss Tin

Product Description

The HERTEL 2386753 is a screw machine length drill bit ground from high-speed steel and finished with a titanium nitride (TiN) coating. The shortened overall length of 2-3/16 inches provides added rigidity compared to jobber-length bits, making it well suited for high-cycle production drilling in metal fabrication, HVAC bracket work, and mechanical contracting applications. The 135-degree split point self-centers on contact, reducing walking and the need for a center punch. Web thinning further reduces thrust requirements, easing entry into harder steel stock. This is a right-hand cutting bit with a regular spiral flute and a straight cylindrical shank for use in standard drill chucks and CNC turrets.

This bit is designed for drilling ferrous and non-ferrous metals in production and field environments. The screw machine length format is commonly found in shop-floor operations and service vans where rigidity and accuracy matter more than extended reach. The heavy-duty grade classification indicates suitability for interrupted cuts and harder workpiece materials. Trades that commonly stock this size include HVAC sheet metal fabricators, pipefitters, and general mechanical contractors working with structural steel, tubing, and plate stock. The TiN coating extends tool life versus uncoated HSS by reducing friction and heat buildup at the cutting edge.

Key Features

• 135-degree split point self-centers and reduces drill walking without a center punch
• TiN coating reduces friction and extends cutting life compared to bare HSS
• Screw machine (stub) length of 2-3/16 inches delivers increased rigidity over jobber bits
• Web-thinned parallel web lowers axial thrust for cleaner entry into harder materials
• Right-hand regular spiral flute provides efficient chip evacuation
• Straight cylindrical shank fits standard three-jaw chucks and quick-change toolholders

Compatibility

Designed as an OEM-style replacement or direct stock item for use in any drill press, hand drill, or CNC turret accepting a straight cylindrical shank bit at 3/16 inch diameter.

Installation Notes

Installation and use should be performed by a qualified machinist or trade professional familiar with rotating cutting tools. Ensure the drill chuck is fully tightened and the workpiece is secured before operation. Use appropriate cutting fluid for ferrous metals to manage heat and extend bit life. Inspect the cutting edge for wear or chipping before each use and replace if the point geometry is compromised.