Guhring 9002230065300 Stub Drill Bit Letter F Hss

Product Description

The GUHRING 9002230065300 is a stub-length (screw machine length) twist drill bit designed for precision hole-making in ferrous and cast materials. Built to DIN 1897 standards from M2 high-speed steel, it features a 118-degree standard point angle with web thinning on a tapered web for easier entry and reduced thrust. The cutting diameter is letter size F, equal to 0.2571 inches, with a straight-cylindrical shank of 6.53 mm (0.2571 inches) diameter. Overall length is 70 mm (2.756 inches). The shortened flute length and stub body make this bit well suited for rigid setups where a standard jobber-length drill would flex or chatter.

This drill bit is intended for use in screw machine operations, CNC drilling centers, drill presses, and manual turret lathes where compact tooling is required. Primary workpiece materials listed by the manufacturer are cast iron and steel. The stub-length configuration improves rigidity in short-reach applications, reducing deflection when drilling through harder ferrous stock. It is a single-piece replacement bit sold individually and is appropriate for production environments or maintenance shops running steel fabrication or machining operations.

Key Features

• DIN 1897 stub-length design increases rigidity and reduces deflection in ferrous drilling
• M2 high-speed steel construction provides heat resistance and edge retention in steel and cast iron
• 118-degree standard point angle with web thinning for reduced entry thrust
• Straight-cylindrical shank compatible with standard drill chucks and collet holders
• 2-flute regular spiral geometry promotes chip evacuation in through-hole and blind-hole applications
• Maximum drilling depth of 21.21 mm (0.835 inches) per DIN 1897 specification

Compatibility

Designed as a DIN 1897 stub-length replacement drill bit for use in standard drill chucks and collet systems accepting a 6.53 mm straight-cylindrical shank. Primary workpiece materials specified by the manufacturer are cast iron and steel.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician. Secure the shank fully in the chuck or collet before operation, and verify runout before cutting. Ensure the drilling machine spindle is stopped and locked out before changing tooling. Do not use this bit on materials outside the manufacturer-specified workpiece range, as doing so may cause premature wear or tool breakage.