DM-42 Sharpening Head for Gun Drills up to 2 1/8” Diameter
Sterling Gun Drills, Inc. announces a new sharpening head for single flute gun drills to increase the range of our Manual Regrind Fixtures to over 2 1/8" (54mm).
Part # DM-42 Large Manual Sharpening fixture has a range of .75” (19mm) to approx.
2 1/8” (54mm), and is offered complete with the base assembly for $1795.00.
Part # DM-42-A, Large Sharpening Head, is offered as an option* for a (modified)
DM-41 Manual Regrind Fixture at $599.00.
No additional collets or adapters are necessary to sharpen single flute gun drills of any manufacture with the popular “facet” nose grind to virtually any configuration required.
* To cope with the additional weight of very large gun drills, we recommend strengthening the clamping screws and handles of DM-41 fixtures already in use before fitting the DM-42-A head. The vertical and horizontal adjustment studs of DM-41 fixture should be increased in size to a ½ x 13 thread, along with more substantial locking handles. If desired, existing owners can return their DM-41 fixture to Sterling Gun Drills, Inc. for modification at $199.00. New fixtures ordered as DM-42, or DM-42 with the DM-41-A option, will have this modification included as standard. Price for the DM-42 with DM-41-A "standard" Sharpening Head is $2490.00. Price of the DM-41-A "standard" Sharpening Head alone (diameter range .16” – 1.25”, 4 – 32mm) is $695.00
Changeover of the standard sharpening head DM-41-A to the DM-42–A large sharpening head on the base fixture involves just two screws to swap the vertical register from the standard fixture to the large fixture.
Due to variation in flute shape from size to size and from one manufacturer to another, a fine adjustment feature is built into the clamping wedge that allows leveling the cutting face on gun drills with flute angles from 105º - 120º. A 1/8” hex key is furnished for this purpose.
Existing sharpening instruction is suitable for all diameters.
Part# reference
DM-42
Manual Regrind Fixture (large)
DM-41
Manual Regring Fixture (std.)
DM-42-A
Head Assy. (large)
DM-41-A
Head Assy. (std.)
DM-42-B
Base Assy. (large clamping)
DM-41-B
Base Assy. (std.)
DM-42 + DM-41 A Head assy. Includes the "large" fixture base assy., large head, and standard head allowing gun drill sharpening from .156 (4mm) to 2.125" (54mm).
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information about our Regrind Systems
