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2. Drill bit sizes - Wikipedia

   en.wikipedia.org/wiki/Drill_bit_sizes

   ANSI B94.11M-1979 sets size standards for jobber-length straight-shank twist drill bits from 1/64 inch through 1 inch in 1/64 inch increments. For Morse taper -shank drill bits, the standard continues in 1/64 inch increments up to 1¾ inch, then 1/32 inch increments up to 2¼ inch, 1/16 inch increments up to 3 inches, 1/8 inch increments up to ...

3. List of drill and tap sizes - Wikipedia

   en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

   Example (inch, fine): For 7 ⁄ 16-20 (same diameter as the previous example, but this time with 20 threads per inch, which is considered fine), 0.437 in × 0.90 = 0.393 in (i.e., if the threads are to be fine, then a slightly larger diameter drill bit should be used before tapping the hole for the screw).

4. Drill bit - Wikipedia

   en.wikipedia.org/wiki/Drill_bit

   The diameter-to-length ratio of the drill bit is usually between 1:1 and 1:10. Much higher ratios are possible (e.g., "aircraft-length" twist bits, pressured-oil gun drill bits, etc.), but the higher the ratio, the greater the technical challenge of producing good work.

5. Drill bit shank - Wikipedia

   en.wikipedia.org/wiki/Drill_bit_shank

   The shortest SDS-plus masonry drill bits are about 110 mm overall length, and the longest 1500 mm. SDS-max is more common for larger rotary hammers and chipping guns, and common sizes start at 1 ⁄ 2 inch (13 mm) diameter up to 1 + 3 ⁄ 4 inches (44 mm) diameter. Standard lengths are 12 to 21 inches (300 to 530 mm).

6. Drill - Wikipedia

   en.wikipedia.org/wiki/Drill

   A standard hammer drill accepts 6 mm (1/4 inch) and 13 mm (1/2 inch) drill bits. The operator experiences considerable vibration, and the cams are generally made from hardened steel to avoid them wearing out quickly. In practice, drills are restricted to standard masonry bits up to 13 mm (1/2 inch) in diameter.

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   www.aol.com/lifestyle/cyber-monday-gifts-sale...

   DEWALT 20V MAX Cordless Drill and Impact Driver for $129 ... and a 7.5-inch dish that holds 1.1 quart. ... "I was a bit careless and forgot the watch in my pants when I was doing laundry. Luckily ...