Guhring 9007300049800 Carbide Stub Drill Bit 0.196 in

Product Description

The GUHRING 9007300049800 is a solid carbide screw machine length drill bit designed for precision drilling in metalworking and light industrial applications. Built to DIN 6539 standards, this stub-length bit features a 118-degree faceted point and a right-hand spiral flute configuration. The micrograin carbide construction provides rigidity and edge retention, making it well suited for drilling aluminum and other non-ferrous materials. At 0.196 inches in diameter with a straight-cylindrical shank, it fits standard drill chucks and CNC tool holders without adapters. Web thinning reduces thrust requirements at entry and helps maintain hole accuracy in short-depth applications.

This bit is intended for stub-length drilling tasks where rigidity matters more than reach. Primary workpiece material is aluminum, and general-purpose performance makes it appropriate for production environments, machine shops, and maintenance operations. The Series 730 designation places it in a line optimized for close-tolerance hole work. Maximum drilling depth is 0.73 inches, which covers the majority of through-hole and shallow blind-hole jobs encountered in standard screw machine and CNC lathe setups. It is sold individually and carries a package quantity of one.

Key Features

• Solid micrograin carbide construction for edge retention in aluminum and non-ferrous materials
• 118-degree faceted drill point with web thinning to reduce entry thrust
• DIN 6539 standard geometry, Series 730
• Bright/uncoated finish — no coating layer to interfere with tight-tolerance fits
• Straight-cylindrical shank compatible with standard drill chucks and collet systems
• Stub length provides added rigidity compared to jobber-length bits

Compatibility

Designed as an OEM-style general-purpose stub drill for use in screw machines, CNC lathes, and drill presses that accept a straight-cylindrical shank. Fits tool holders sized for a 4.98 mm shank diameter per DIN tolerances.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully in the chuck or collet and verify runout before committing to a production run. Do not exceed the maximum drilling depth of 0.73 inches without retracting to clear chips, particularly in blind-hole operations.