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Packs of 10-High Speed Steel Twist Drills Sizes #80 to #50 - Otto Frei

Packs of 10-High Speed Steel Twist Drills Sizes #80 to #50

Part # 128.550

Single unit weight: -- lbs / -- kg

$8.30
Availability:
15 in stock, ready to be shipped
Availability:
15 in stock, ready to be shipped
Availability:
14 in stock, ready to be shipped
Availability:
15 in stock, ready to be shipped
Availability:
18 in stock, ready to be shipped
Availability:
24 in stock, ready to be shipped
Availability:
18 in stock, ready to be shipped
Availability:
16 in stock, ready to be shipped
Availability:
19 in stock, ready to be shipped
Availability:
22 in stock, ready to be shipped
Availability:
22 in stock, ready to be shipped
Availability:
16 in stock, ready to be shipped
Availability:
17 in stock, ready to be shipped
Availability:
18 in stock, ready to be shipped
Availability:
24 in stock, ready to be shipped
Availability:
18 in stock, ready to be shipped
Availability:
18 in stock, ready to be shipped
Availability:
21 in stock, ready to be shipped
Availability:
25 in stock, ready to be shipped
Availability:
24 in stock, ready to be shipped
Availability:
20 in stock, ready to be shipped
Availability:
18 in stock, ready to be shipped
Availability:
20 in stock, ready to be shipped
Availability:
17 in stock, ready to be shipped
Availability:
25 in stock, ready to be shipped
Availability:
12 in stock, ready to be shipped
Availability:
14 in stock, ready to be shipped
Availability:
13 in stock, ready to be shipped
Availability:
14 in stock, ready to be shipped
Availability:
12 in stock, ready to be shipped
Availability:
18 in stock, ready to be shipped
by Otto Frei

Pack Size Options

Sold in packs. See Product Description for quantity.

Drill Size: #50 1.778mm .0700"

Product Details

High Speed Steel (HSS) twist drills sized #80 to #50, sold in convenient packs of 10. These are a staple in jewelry studios everywhere, engineered for drilling precise small holes in non-ferrous metals including gold, silver, copper, and brass. The shaft diameter matches the drill diameter throughout the range, making them compatible with adjustable chuck handpieces, drill presses, and adapter chucks for collet-style quick-change handpieces.

Sizes span from the finest #80 (0.343 mm / 0.0135") up to #50 (1.778 mm / 0.0700"), covering 31 individual wire-gauge sizes. A closest metric equivalent is noted for sizes where one applies.

Features

  • High Speed Steel (HSS) construction for durability in non-ferrous metals
  • Straight shank diameter matches drill diameter throughout the range
  • Compatible with adjustable chuck handpieces, drill presses, and adapter chucks for collet-style quick-change handpieces
  • 31 individual sizes available from #80 to #50
  • Sold in packs of 10 drills per size

Specifications

Material High Speed Steel (HSS)
Size Range #80 – #50
Diameter Range 0.343 mm – 1.778 mm (0.0135" – 0.0700")
Pack Quantity 10 drills per pack
Intended Materials Non-ferrous metals (gold, silver, copper, brass)

Available Options

Part # Drill Size MM Diameter Inch Diameter
128.550 #50 1.778 mm 0.0700"
128.551 #51 1.702 mm 0.0670"
128.552 #52 1.613 mm 0.0635"
128.553 #53 1.511 mm 0.0595"
128.554 #54 1.397 mm 0.0550"
128.555 #55 1.321 mm 0.0520"
128.556 #56 1.181 mm 0.0465"
128.557 #57 1.092 mm 0.0430"
128.558 #58 1.067 mm 0.0420"
128.559 #59 1.041 mm 0.0410"
128.560 #60 1.016 mm 0.0400"
128.561 #61 0.991 mm 0.0390"
128.562 #62 0.965 mm 0.0380"
128.563 #63 0.940 mm 0.0370"
128.564 #64 0.914 mm 0.0360"
128.565 #65 0.889 mm 0.0350"
128.566 #66 0.838 mm 0.0330"
128.567 #67 0.813 mm 0.0320"
128.568 #68 0.787 mm 0.0310"
128.569 #69 0.744 mm 0.0293"
128.570 #70 0.717 mm 0.0280"
128.571 #71 0.660 mm 0.0260"
128.572 #72 0.635 mm 0.0250"
128.573 #73 0.610 mm 0.0240"
128.574 #74 0.572 mm 0.0225"
128.575 #75 0.533 mm 0.0210"
128.576 #76 0.508 mm 0.0200"
128.577 #77 0.457 mm 0.0180"
128.578 #78 0.406 mm 0.0160"
128.579 #79 0.368 mm 0.0145"
128.580 #80 0.343 mm 0.0135"
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