Guhring 9005150035000 Stub Drill Bit 0.1378 in Powdered Metal

Product Description

The GUHRING 9005150035000 is a screw machine length (stub) drill bit designed for precision hole-making in demanding production environments. Manufactured from powdered metal (PMASP60 grade) with a coated finish, this bit delivers consistent performance in cast iron and steel applications. It features a 2-flute parabolic geometry that improves chip evacuation and reduces heat buildup during drilling. The 130-degree point angle with web thinning allows for faster penetration and improved self-centering on the workpiece. At 2.0472 inches overall length with a 0.1378-inch diameter, it fits standard straight-cylindrical chuck systems. Licensed tradespeople and machining technicians use this bit in production drilling and CNC screw machine operations.

This drill bit is suited for stub-length applications where rigidity is critical and axial runout must be minimized. The parabolic flute design with a parallel web configuration handles interrupted cuts and short-hole drilling in cast iron and steel workpieces. A maximum drilling depth of 0.5810 inches makes it appropriate for through-hole and shallow blind-hole operations in metal fabrication, job shop, and production machining settings. The Series 515 designation conforms to DIN 1897 specification for stub-length twist drills, making it a recognized standard in industrial tooling.

Key Features

• Powdered metal (PMASP60) construction with coated finish for extended tool life in ferrous materials
• 130-degree point angle with web thinning improves entry and reduces thrust force
• Parabolic 2-flute geometry with parallel web for efficient chip removal
• Straight-cylindrical shank at 0.1378 inches diameter fits standard drill chucks and collets
• DIN 1897 compliant stub-length design provides added rigidity over jobber-length bits
• Right-hand cut with no coolant-through requirement simplifies setup on standard drilling equipment

Compatibility

Designed as an OEM-style stub drill conforming to DIN 1897 standards, suitable for use in standard straight-shank drill chucks, collets, and CNC turrets accepting 0.1378-inch shank tooling used in production machining of cast iron and steel.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with cutting tool selection and machine setup. Secure the shank fully in the chuck or collet and verify runout before production use. Ensure spindle speed and feed rate are set according to the workpiece material and machine specifications before drilling. Inspect the cutting edges for wear or chipping before each use and replace the bit if edge integrity is compromised.