Guhring 9005150047600 Screw Machine Drill Bit 3/16 in

Product Description

The GUHRING 9005150047600 is a stub-length (screw machine length) drill bit designed for precision drilling in cast iron and steel. Built from powdered metal (PMASP60 grade) with a coated finish, this Series 515 bit features a parabolic flute geometry and a web-thinned, parallel-web construction that reduces thrust and improves chip evacuation in short-hole applications. At 0.1875 inches (3/16 in) diameter with a 130-degree split point, it is suited for production drilling environments where rigidity and repeatability are critical. The straight-cylindrical shank fits standard drill chucks without modification.

This bit is intended for use in ferrous workpiece materials, specifically cast iron and steel, in screw machine, CNC, or drill press operations. The stub (screw machine) length format provides added rigidity over jobber-length bits, making it well suited for close-tolerance work, fixture drilling, and high-cycle production runs. The parabolic flute profile supports efficient chip clearing at moderate to high feed rates. It conforms to DIN 1897 standards, which governs stub-length straight-shank twist drills.

Key Features

• Stub-length (screw machine) format for increased rigidity and reduced deflection
• Parabolic flute design promotes efficient chip evacuation in cast iron and steel
• Web-thinned parallel web reduces cutting thrust and entry force
• 130-degree point angle improves centering and reduces walking on entry
• Powdered metal construction (PMASP60) provides wear resistance in ferrous materials
• Conforms to DIN 1897 specification for stub-length straight-shank drill bits

Compatibility

Designed as a DIN 1897-compliant stub-length drill bit for use in cast iron and steel workpieces. Fits any standard drill chuck or collet accepting a 0.1875-inch straight-cylindrical shank.

Installation Notes

Install in a drill press, CNC machining center, or screw machine with a chuck or collet sized for a 0.1875-inch straight shank. Ensure the workpiece is securely clamped before drilling to prevent rotation or movement. Use appropriate cutting fluid or coolant for steel applications to extend tool life, noting this bit does not support through-coolant. Inspect the cutting edges for wear or chipping before each use and replace if edge condition is degraded.