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2. Husky (tool brand) - Wikipedia

   en.wikipedia.org/wiki/Husky_(tool_brand)

   Husky is a line of hand tools, pneumatic tools, and tool storage products. Though founded in 1924, it is now best known as the house brand of The Home Depot, where it is exclusively sold. Its hand tools are manufactured for Home Depot by Western Forge, Apex Tool Group, and Iron Bridge Tools. [1] Its slogan is "The toughest name in tools."

3. Drill bit - Wikipedia

   en.wikipedia.org/wiki/Drill_bit

   Twist drill bits are available in standard lengths, referred to as Stub-length or Screw-Machine-length (short), the extremely common Jobber-length (medium), and Taper-length or Long-Series (long). Most drill bits for consumer use have straight shanks. For heavy duty drilling in industry, bits with tapered shanks are sometimes used. Other types ...

4. Rotary hammer - Wikipedia

   en.wikipedia.org/wiki/Rotary_hammer

   A worn drill bit will still drill a horizontal hole, although of a slightly smaller diameter than one created when it was new. When a drill like this is used to drill holes down into a concrete slab, the flutes are so worn that they can no longer lift the dust out of the hole; the concrete dust packs up in the hole and jams the bit.

5. Drill - Wikipedia

   en.wikipedia.org/wiki/Drill

   A magnetic drill is a portable machine for drilling holes in large and heavy workpieces which are difficult to move or bring to a stationary conventional drilling machine. It has a magnetic base and drills holes with the help of cutting tools like annular cutters (broach cutters) or with twist drill bits. There are various types depending on ...

6. Jackhammer - Wikipedia

   en.wikipedia.org/wiki/Jackhammer

   The first American "percussion drill" was made in 1848, and patented in 1849 by Jonathan J. Couch of Philadelphia, Pennsylvania. [7] In that drill, the drill bit passed through the piston of a steam engine. The piston snagged the drill bit and hurled it against the rock face. It was an experimental model.

7. High-speed steel - Wikipedia

   en.wikipedia.org/wiki/High-speed_steel

   It is usually used to manufacture a variety of tools, such as drill bits, taps and reamers. 1.3343 is the equivalent numeric designation for M2 material identified in ISO 4957. M7 M7 is used for making heavier construction drills where flexibility and extended drill life are equally important. M50