Guhring 9011830115100 Carbide Drill Bit 29/64 in 140 Deg

Product Description

The GUHRING 9011830115100 is a solid carbide jobber-length drill bit ground to a 140-degree point angle and finished with a titanium nitride (TiN) coating. Manufactured to DIN 6537 L and DIN 6535 standards, it measures 118 mm (4.646 inches) in overall length with a 71 mm (2.795 inches) flute length. The submicron carbide substrate provides the hardness and wear resistance required for productive drilling in ferrous materials. A whistle notch shank secures the bit positively in the holder and resists rotation under cutting loads. This bit is installed by machinists and toolroom technicians working on production drilling operations in CNC machining centers or drill presses.

This bit is intended for drilling cast iron and steel in industrial and manufacturing environments. The self-centering 140-degree point geometry reduces the need for a center punch on flat stock. The 5xD flute-to-diameter ratio accommodates moderate-depth holes, and the coolant-through design channels fluid directly to the cutting edge for heat management and chip evacuation in deeper applications. It is suited to production environments where consistent hole quality and extended tool life in P and K workpiece material categories are required.

Key Features

• Solid submicron carbide construction for high wear resistance in cast iron and steel
• TiN coating reduces friction and extends tool life in ferrous materials
• 140-degree SU point geometry with web thinning for self-centering entry
• Coolant-through design directs fluid to the cutting zone for heat and chip control
• Whistle notch shank prevents rotation and slip under heavy feed loads
• Conforms to DIN 6537 L and DIN 6535 standards for consistent dimensional tolerances

Compatibility

Designed for use in toolholders and collet chucks that accept a 0.4724-inch shank diameter with a whistle notch seat. Compatible with primary workpiece materials classified as cast iron (K) and steel (P) per ISO material group designations. Series 1183 per GUHRING designation.

Installation Notes

Installation is performed by a machinist or toolroom technician. Before mounting, confirm the toolholder bore matches the 0.4724-inch shank diameter and that the whistle notch setscrew aligns correctly with the flat. Ensure the machine spindle is fully stopped and locked before inserting or removing the bit. When using the coolant-through feature, verify that coolant pressure and flow rate are within the machine spindle specifications to avoid damage to internal channels.