Cleveland C71087 Jobber Drill Bit Letter Q 0.3320 in Hss

Product Description

The CLEVELAND C71087 is a jobber-length twist drill bit sized to letter Q (0.3320 inches decimal), designed for general-purpose drilling in metal, wood, and plastics. Built from high speed steel with an oxide coating, it resists heat and light corrosion during drilling operations. The bit features a 118-degree standard point angle and a web-thinned, tapered web configuration that reduces thrust force on entry. With an overall length of 4.75 inches and a 3.4375-inch flute, this bit fits standard drill chucks and is suited for production and maintenance work on the shop floor or in the field.

The C71087 belongs to Cleveland Series 2001G and is rated for general-purpose tool performance. It is appropriate for use in handheld electric drills, drill presses, and CNC drilling setups where a straight-cylindrical shank bit is required. The right-hand spiral flute evacuates chips efficiently, making it a practical choice for machinists, maintenance technicians, and metal fabricators drilling in mild steel, aluminum, and similar materials.

Key Features

• Letter Q size, 0.3320-inch decimal diameter with a tolerance of -0.0010 to 0.0000 inches
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• High speed steel construction with oxide coating for heat and corrosion resistance
• Right-hand cut, regular spiral flute for efficient chip evacuation
• Straight-cylindrical shank at 0.3320 inches diameter, 1.3125 inches shank length
• Meets ASME B94.11M and DIN 338 standards

Compatibility

Designed as a general-purpose jobber-length drill bit for use in standard drill chucks accepting a straight-cylindrical shank in the 0.3320-inch diameter range.

Installation Notes

Installation is performed by machinists or maintenance technicians using a drill press, handheld power drill, or CNC machine with an appropriate chuck. Ensure the chuck is fully tightened and the workpiece is securely clamped before beginning drilling. Use cutting fluid when drilling ferrous metals to extend bit life and improve hole quality. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.