Guhring 9002050071400 Letter K Jobber Drill Hss

Product Description

The GUHRING 9002050071400 is a high speed steel jobber-length drill bit sized to letter K (0.2812 inches / 9/32 inches) with a standard 118-degree split-point geometry and an oxide coating. Built to DIN 338 specifications, this bit features a regular spiral flute, a straight-cylindrical shank, and a web-thinned, tapered web configuration that reduces thrust on entry. At 0.054 pounds, it is a compact general-purpose tool with an overall length of 109.00 mm and a flute length of 69.00 mm. Material grade M2 high speed steel gives it solid performance across a range of ferrous and non-ferrous workpieces. Licensed HVAC technicians, machinists, and maintenance trades reach for this bit when drilling to tight tolerances in production or field environments.

This drill bit is suited for general-purpose drilling in cast iron and steel, the primary listed workpiece materials. The 5xD flute-to-diameter ratio supports chip evacuation in moderate-depth holes up to a maximum drilling depth of 58.29 mm (2.295 inches). The right-hand cutting direction and straight-cylindrical shank make it compatible with standard drill chucks and multi-spindle setups found in production shops and field service applications. It is sold individually and is appropriate for one-off jobs or as a replacement bit in a set.

Key Features

• Letter K size: 0.2812 inches (9/32 inches) drill diameter with a +0.000 to -0.022 mm tolerance
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• M2 high speed steel construction with oxide coating for surface protection
• DIN 338 specification, Series 205, regular spiral flute, right-hand cut
• 2-flute design with a 5xD flute-by-diameter ratio for efficient chip clearing
• Straight-cylindrical shank at 0.2813 inches (7.14 mm) diameter fits standard chucks

Compatibility

Designed as a general-purpose OEM-style replacement jobber drill bit compatible with any standard drill chuck or CNC spindle accepting a straight-cylindrical shank at 9/32 inches. Suitable for cast iron and steel workpieces as noted in manufacturer specifications.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance trades using a standard keyed or keyless chuck. Ensure the workpiece is securely fixtured and the machine is brought to a full stop before inserting or removing the bit. Use appropriate cutting fluid or coolant for extended runs in ferrous materials; note that this bit does not have through-coolant capability. Inspect the cutting edges and web area for wear before each use and replace if chipping or excessive dulling is observed.