Hertel 61699237 Screw Machine Drill Bit 0.295 in Hss Letter M

Product Description

The HERTEL 61699237 is a screw machine length drill bit designed for general-purpose drilling in metal, wood, and plastic. Built from high speed steel (HSS) with an oxide finish, this bit offers good wear resistance and heat dissipation during normal shop or field use. The 118-degree standard point angle suits a wide range of common materials, and the right-hand spiral flute geometry promotes efficient chip evacuation. At 2.75 inches overall length with a 1.5625-inch flute length, this screw machine format provides added rigidity over jobber-length bits, making it well suited for work in drill presses and turret lathes where stub reach is preferred.

This bit is sized to Letter M (0.295 inches decimal) and fits applications requiring close-tolerance holes in light to medium stock removal. It is commonly used in machine shops, maintenance facilities, and fabrication environments. The straight cylindrical shank seats securely in standard drill chucks and collet holders. A 3xD flute-to-diameter ratio supports stable chip flow in through-hole operations. This is a single-piece unit sold individually, appropriate for both bench-top and handheld drilling tasks handled by machinists, maintenance technicians, and trade professionals.

Key Features

• High speed steel construction with oxide finish for heat and wear resistance
• 118-degree standard point angle for general-purpose material compatibility
• Screw machine length (2.75 inches overall) provides greater rigidity than jobber-length bits
• Right-hand cut with regular spiral flute for efficient chip evacuation
• Straight cylindrical shank fits standard drill chucks and collet holders
• Letter M size — 0.295 inches decimal — within the 0.2500 to 0.3000 inch range

Compatibility

Designed as a general-purpose screw machine length drill bit suitable for use in drill presses, turret lathes, and handheld drill chucks accepting a straight cylindrical shank within the 0.2500 to 0.3000 inch drill bit size range.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with rotating cutting tools. Ensure the drill chuck or collet is fully tightened and the workpiece is securely fixtured before starting the spindle. Always wear appropriate eye protection and follow applicable shop safety protocols when operating drilling equipment. Do not exceed the recommended spindle speed for the material being drilled or the tool material rating.