Quality Industrial Abrasives and Tools | Benchmark Abrasives

#55 HSS Black Oxide Jobber Length Drill Bit - 12 Pack

#55 HSS Black Oxide Jobber Length Drill Bit - 12 Pack - Main image
$4.56 $6.81 In stock
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Product Specification

#55 HSS BLACK OXIDE JOBBER LENGTH DRILL BITS - 12 PACK

#55 HSS Black Oxide Jobber Length Drill Bits - 12 Pack is a drill bit that has a long length compared to its diameter. These bits provide more flexibility and absorb more shock and vibration than cobalt, powdered-metal, and carbide jobber-length. These jobber bits have a good balance of strength and precision when drilling into a range of materials. Each jobber bit is commonly used in softer materials such as wood, soft metals, or composite. They come in a wide range of sizes, finishes, and materials. Our jobber bits are designed, engineered, and superbly crafted to provide long-lasting durability.

A 135 degree split point designed to prevent wobbling, walking or skating and eliminate the need for a pilot punch. These bits are manufactured from M2 high speed steel and heat treated to ensure an extended life and optimal performance cutting holes. The black oxide finish provides increased abrasion and corrosion resistance.   

Quantity: 12 pieces

Dimensions

  • Overall Length – 1-7/8” (Jobber Length)
  • Sizes – #55 wire gauge
  • Decimal Equivalent – 0.052”
  • Shank Diameter – round straight chank

Machines Used On:

  • Electric powered rotary drills and chuck adapters

Material Used On:

  • Steel, sheet metal, PVC, MDF, oak, maple, aluminum and more

Safety Tips/techniques:

  • Always wear proper PPE to include (but not limited to) safety glasses, hearing protection, respirator, and hand protection.  Keep all guards in place on your machine.
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      Customer Reviews (5.0 / 5 · 5 reviews)

      Robert ★★★★★

      Started drilling into some stainless steel brackets today and these #55 bits didn't even squeak, the black oxide coating clearly helped. After about a dozen holes they still feel sharp—no skipped or wandering tips. Solid pack for the price.

      Lucy ★★★★★

      The black oxide finish handled a full afternoon of drilling into steel without any chips peeling off, and the #55 size cut clean holes exactly where I marked them. I've already burned through cheaper bits in one sitting, so getting a full 12-pack of these feels like a solid deal.

      Natalie U. ★★★★★

      Grabbed these for some tight tolerance holes I had to drill and they cut cleanly right out of the pack without any wandering on start. The black oxide finish seems to hold up better than plain steel bits I've used before.