Guhring 9006170080300 Taper Length Drill Bit Letter O

Product Description

The GUHRING 9006170080300 is a taper length twist drill bit in Series 617, designed for high-performance metal drilling in demanding shop and field environments. Built from HSS-E M35 cobalt steel with a bright uncoated finish, it carries a Letter O diameter of 0.3160 inches and features a 130-degree split point for accurate self-centering entry without a center punch. The spiral flute geometry follows a regular helix with a tapered web configuration, and the flute-to-diameter ratio of 10xD supports deeper hole applications. This bit is manufactured to DIN 340 specification and suited for machinists, toolroom technicians, and maintenance mechanics working in production or MRO settings.

The 9006170080300 is intended for taper-length drilling operations where standard jobber bits are too short for the required reach. It is well suited to drilling steel, stainless, cast iron, and other ferrous alloys in both manual and CNC drill press setups. The straight cylindrical shank with a diameter of 8.03 mm fits standard drill chucks without adapters. Maximum drilling depth is 96.96 mm, making it appropriate for through-hole and blind-hole work in medium-thickness workpieces. Right-hand cut direction is compatible with conventional clockwise spindle rotation.

Key Features

• HSS-E M35 cobalt construction for heat and wear resistance in ferrous metal drilling
• 130-degree split point enables self-centering entry and reduces walking on flat stock
• Tapered web with web thinning reduces thrust force and improves chip evacuation
• DIN 340 taper length standard with 109 mm flute length and 165 mm overall length
• Straight cylindrical shank fits standard drill chucks without special toolholders
• Right-hand spiral flute with 10xD ratio supports extended-reach hole applications

Compatibility

Designed as an OEM-style taper length drill bit conforming to DIN 340 standards, suitable for use in any drill press, machining center, or handheld drill with a chuck capacity accommodating an 8.03 mm straight shank.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom personnel familiar with cutting tool setup and safe machine operation. Secure the shank fully in the drill chuck and verify runout before beginning a cut. Always power down and lock out the spindle before changing tooling. Do not exceed the recommended drilling depth of 96.96 mm, and use appropriate cutting fluid for the workpiece material to maximize tool life.