Drill Masters Eldorado Tool

INDUSTRY STANDARD NOSE GRINDS

N8
N8 Nose Grind

General purpose stock drill grind for steel, inconel and stainless steel are most often used with stock ‘R1′ O.D. contour.  This geometry can be reproduced on our Model “B” Sharpening Fixture.

View N8 Nose Grind Print (PDF)

N4

N4 Nose Grind

In aluminum and brass, use this grind with ‘R4′ O.D. contour for best hole finish.

View N4 Nose Grind Print (PDF)

N73

N73 Nose Grind

This Nose Grind is used for drilling stacked parts and angular entries. Due to the point’s placement near the center of the drill, this is the strongest gundrill.

View N73 Nose Grind Print (PDF)

N126

N126 Nose Grind

This Nose Grind is for applications requiring nearly flat bottoms. It can also be ground for a completely flat bottom or on difficult materials used to qualify bottoms only.

View N126 Nose Grind Print (PDF)

Copper

This Nose Grind is for applications requiring nearly flat bottoms. It can also be ground for a completely flat bottom or on difficult materials used to qualify bottoms only.

View Copper Nose Grind Print (PDF)

Facet F-8

Facet F8 Nose Grind

Facet grinds are preferred on specific applications or when regrind fixtures limit the cam type sharpenings. They can be ground to various slash type angles with good performance, and they allow a greater amount of clearance for coolant to cool the chip at the cutting edge. This grind is standard on most European applications.

View Nose Grind Print (PDF)

TECH SUPPORT

We have a dedicated staff of experts with over 85 years of combined experience to assist the customer with all of their special requirements. At the beginning phase of an engineering project, give us a call to discuss the process sequences required to avoid unnecessary problems in the future. If the customer is experiencing any gundrilling problems or has questions, they should contact our engineering staff for solutions.