Hertel C.40N.3572 Screw Machine Drill Bit 1-13/32 in

Product Description

The HERTEL C.40N.3572 is a screw machine length drill bit designed for high-production drilling applications where a shorter, more rigid tool is required. Built from high-speed steel (HSS) with a bright/uncoated finish, it carries a 1-13/32 inch (1.4063 inch decimal) diameter and a standard 118-degree split-free point angle. The shortened overall length of 7-3/8 inches compared to jobber-length equivalents reduces deflection and improves hole accuracy in metal, wood, and general-purpose materials. Right-hand cutting geometry makes it compatible with conventional drill press and CNC spindle setups. This bit is rated for general-purpose use across a wide range of material types.

Screw machine length drill bits are a standard choice in machine shops, fabrication environments, and automated drilling operations where rigidity and repeatability matter more than extended reach. The C.40N.3572 suits drill presses, CNC machining centers, and turret lathes running right-hand rotation. Its 4-3/4 inch flute length provides adequate chip clearance for through-hole drilling in stock up to that depth. Machinists, tool-and-die techs, and fabricators working in production environments will find this bit suited to repetitive, high-cycle drilling tasks.

Key Features

• 1-13/32 inch (1.4063 inch decimal) diameter for oversized or close-tolerance hole applications
• 118-degree point angle — standard geometry compatible with most ferrous and non-ferrous materials
• High-speed steel construction provides toughness and re-sharpenability
• Bright/uncoated finish — no coating buildup to affect dimensional tolerance
• Screw machine length (7-3/8 inch OAL) reduces deflection versus jobber-length equivalents
• Right-hand cutting direction compatible with standard drill press and CNC spindle rotation

Compatibility

Designed as a general-purpose screw machine length drill bit suitable for use in drill presses, CNC machining centers, turret lathes, and other right-hand-rotation drilling equipment accepting large-diameter shanks. Fits drill chucks or collets sized for the 1-13/32 inch shank diameter.

Installation Notes

Secure the bit fully in the chuck or collet before operation and verify runout before beginning a drilling cycle. Always power down and lock out the machine before changing tooling. Use appropriate cutting fluid for the material being drilled to extend tool life and maintain hole quality. Inspect the cutting edges before each use and resharpen or replace the bit if chipping or wear is detected.