Guhring 9002050019900 No. 47 Hss Jobber Drill Bit

Product Description

The GUHRING 9002050019900 is a No. 47 wire-size jobber-length drill bit ground from M2 high speed steel with a bright, uncoated finish. It carries a 118-degree standard point angle and a web-thinned, tapered web to reduce entry resistance and center the bit without a pilot hole. The spiral flute geometry runs in a right-hand cutting direction with a regular helix, evacuating chips efficiently during through-hole drilling. Overall length is 49.00 mm and the shank diameter measures 1.99 mm. Built to DIN 338, this bit is a general-purpose tool suited for production and maintenance drilling by machinists, millwrights, and tool-room technicians.

This bit is designed for drilling cast iron and steel workpieces in general-purpose applications. The 0.0783-inch decimal diameter falls in the 0.0500-to-0.1000-inch size range, making it a common choice for tapping prep, small clearance holes, and instrument or sheet-metal work where wire-gauge sizing is specified. The straight-cylindrical shank is compatible with standard drill chucks and collet holders used on bench drills, CNC machining centers, and handheld drill motors. Flute length is 24.00 mm, supporting a maximum drilling depth of 21.02 mm in a single pass.

Key Features

• No. 47 wire size - 0.0783-inch decimal diameter, ground to DIN 338 specification
• M2 high speed steel construction for durability across cast iron and steel workpieces
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust
• Bright, uncoated finish - compatible with cutting oils and water-based coolants
• Right-hand spiral flute, regular helix - efficient chip evacuation in through-hole drilling
• Straight-cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose replacement or stock drill bit for any drill chuck or collet holder accepting a 1.99 mm straight-cylindrical shank. Primary workpiece materials are cast iron and steel.

Installation Notes

Installation and use of this drill bit should be performed by a qualified machinist or trade professional following standard machine-shop safety practices. Ensure the drill chuck or collet is properly seated and tightened before operation, and confirm the workpiece is clamped securely. Apply an appropriate cutting fluid for steel drilling to extend tool life and maintain dimensional tolerance. Do not exceed the rated maximum drilling depth of 21.02 mm in a single pass without retracting to clear chips.