Introducing the Dormer Pramet A977 13.00 mm HSS-E high performance multi-app straight shank extra long drill (DIN 1869/2). Built for precision, durability, and deep-hole capability, this drill is designed to meet the demands of modern metalworking where reach and reliability matter most.

Why this drill stands out

• 130° point with self-centering action — minimizes wandering at entry and reduces the push force required to start a hole, delivering cleaner starts and more accurate hole geometry.
• Bright finish for reduced sticking — the polished surface helps prevent workpiece material from bonding to the cutting edge, promoting smoother cuts and easier chip evacuation.
• Parabolic flute design — engineered to optimize chip removal and allow drilling very deep holes in a single pass, reducing cycle time and improving hole quality in challenging workpieces.
• Premium HSS-E material — cobalt-enhanced high-speed steel delivers superior wear resistance and longevity when drilling a range of metals, including steel, aluminum, and stainless steel.
• Extra long length series — specifically meant for deep-hole applications and situations where extended reach is required, such as cavity machining, mold making, and engine components.
• DIN 1869/2 compatibility — engineered to meet standard specifications for reliable performance in industrial settings.

Designed for multi‑use drilling, the A977 excels across common metalworking materials. Whether you’re forming pilot holes in mild steel, chasing through aluminum with light alloy irritation, or penetrating stainless steel, this drill maintains cutting efficiency and dimensional accuracy. The straight shank ensures compatibility with a wide range of collets and chucks, making it a versatile addition to any machine shop or workshop toolbox.

Who benefits most

• Professionals performing deep-hole drilling in automotive, aerospace, and mold-making environments
• Maintenance technicians tasked with reaching recessed or blocked cavities
• Fabricators who value long tool life, clean entry surfaces, and reliable chip evacuation

Practical advantages over everyday drills

• Longer reach translates to fewer tool changes and less manual repositioning in deep pockets or fixtures.
• Self-centering 130° point reduces the risk of skewed holes, which helps maintain accurate bore alignment for dowel pins, fasteners, or threaded inserts.
• Bright finish and high-performance substrate work together to deliver consistent hole quality even in tougher materials.
• Parabolic flutes reduce heat buildup and improve swarf flow, helping to prevent clogging and prolonging tool life in extended drilling cycles.

Materials and use cases

The A977 is optimized for:

• Steel and alloy steels where steady, precise drilling is required
• Aluminum and non-ferrous metals where easy chip evacuation matters
• Stainless steels where durability and wear resistance are crucial

Typical applications include creating deep clearance holes, bore calibrations in components with limited access, and production workflows that demand reliable, repeatable results from a single drill in multiple materials.

How to get the best results

• Match cutting speeds and feeds to the material and hole depth, using conservative starts and gradual increases based on observed performance.
• Use appropriate lubrication or coolant to manage heat, especially on stainless steel or deeper holes.
• Secure the workpiece firmly and ensure alignment before starting to reduce deflection and improve hole straightness.
• Inspect the flute and cutting edge regularly; replace the drill when wear begins to impact hole quality or dimensional accuracy.

For professionals who demand a drill that combines depth capability with dependable performance, the Dormer Pramet A977 13.00 mm HSS-E high performance multi-app straight shank extra long drill is built to deliver. It pairs a robust material composition with a thoughtful geometry designed to tackle deep-hole challenges across common metalworking materials.