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Meet the Dormer Pramet A978 7.00 mm HSS-E High-Performance Multi-Application Straight Shank Extra-Long Drill (DIN 1869). This pack of three is built for demanding deep-hole work, delivering reliable, consistent results across a range of materials. When you need reach without sacrificing accuracy, this drill is designed to perform from the first cut to the final depth.
This drill is an ideal choice for machinists, fabricators, and maintenance technicians who tackle deep-hole tasks in steel, stainless steel, and aluminum. Whether you're assembling mechanical components, plumbing through-wall conduits, or creating passage holes in structural parts, the A978’s combination of precision point geometry, aggressive flute design, and extended reach helps you complete jobs faster with fewer passes and less risk of wandering.
Practical tips for best results: match cutting speed to the material, apply light lubrication to reduce heat build-up, and use a firm pecking approach to clear chips when drilling deep holes. Always secure the workpiece and verify the drill’s alignment before starting, and replace worn drills promptly to maintain hole quality and dimensional accuracy.

Ships within 48 hours · Estimated delivery Jun 22 - Jun 27
US$40
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