Hertel 89321608 Screw Machine Drill Bit No 15 Hss

Product Description

The HERTEL 89321608 is a screw machine length drill bit designed for general-purpose metal drilling in production and shop environments. Built from high-speed steel with a bright, uncoated finish, this bit features a standard 118-degree split point and a right-hand cutting direction. The shortened overall length of 2-3/16 inches makes it well suited for close-quarters drilling where a jobber-length bit would be impractical. With a wire gauge size of No. 15, the cutting diameter measures 0.1800 inches, placing it in the 0.1500 to 0.2000 inch size range. Machinists, tool-and-die workers, and maintenance technicians reach for screw machine bits when rigidity and reduced deflection matter more than extended reach.

This bit is a fit for drill presses, CNC machining centers, turret lathes, and hand-held power drills used in light to medium production work. Its compact flute length of 1-1/8 inches keeps the tool stiff, which reduces walking and breakage when drilling steel, aluminum, brass, and similar materials at moderate feeds and speeds. The general-purpose grade suits shops that run mixed-material work without needing a specialized coating or geometry.

Key Features

• No. 15 wire gauge size, 0.1800 inch cutting diameter
• 118-degree drill point angle for general-purpose use on a wide range of metals
• Screw machine length overall of 2-3/16 inches provides extra rigidity over jobber-length bits
• 1-1/8 inch flute length reduces deflection and chatter in short-hole applications
• High-speed steel construction handles standard drilling temperatures without special coolant
• Bright, uncoated finish allows straightforward inspection for wear and damage
• Right-hand cut, compatible with standard drill chucks and spindle rotation

Compatibility

Designed as a general-purpose screw machine length drill bit for use in drill presses, CNC lathes, turret machines, and hand-held power drills accepting standard round-shank bits in the 0.1500 to 0.2000 inch size range.

Installation Notes

This bit is installed and serviced by machinists, tool-and-die technicians, and maintenance trades. Secure the shank fully in the chuck or collet and verify runout before cutting. Always power down and lock out the machine before changing bits or inspecting the cutting edge. Do not exceed the recommended feed and speed for the workpiece material, as overfeeding a short-flute bit can cause breakage.