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Busch 90° Hart Burs

Busch 90° Hart Burs

Vanadium Steel

Vanadium steel hart (bearing cutter) burs with 90° cutting angle made in Germany by Busch®. 3/32" shanks.

The Basics

  • Hart (Bearing Cutter) Burs are used to cut seats in prongs, flush settings, & channels. They are available with 45°, 70° or 90° cutting angles. They can also be used for bright cutting.
  • Vanadium Steel burs are economically priced. They cut precisely when new, but don't retain their sharpness as long as other steel alloys. They're used at low speeds.
  • 3/32" dia. shanks are the jeweler's preferred standard for burs and small rotary tools. They fit the adjustable chucks found on most flexshaft handpieces as well as 3/32" handpiece collets.
Item No. Image Diameter Price Qty
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331-156-009 Hart Bur, Busch 0.9 mm dia. 0.90 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-0097 Hart Bur, Busch 0.97 mm dia. 0.97 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-010 Hart Bur, Busch 1 mm dia. 1.00 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-0112 Hart Bur, Busch 1.12 mm dia. 1.12 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-012 Hart Bur, Busch 1.2 mm dia. 1.20 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-0127 Hart Bur, Busch 1.27 mm dia. 1.27 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-014 Hart Bur, Busch 1.4 mm dia. 1.40 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-0142 Hart Bur, Busch 1.42 mm dia. 1.42 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-015 Hart Bur, Busch 1.5 mm dia. 1.50 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-0158 Hart Bur, Busch 1.58 mm dia. 1.58 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-016 Hart Bur, Busch 1.6 mm dia. 1.60 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-0175 Hart Bur, Busch 1.75 mm dia. 1.75 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-018 Hart Bur, Busch 1.8 mm dia. 1.80 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-0197 Hart Bur, Busch 1.97 mm dia. 1.97 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-021 Hart Bur, Busch 2.1 mm dia. 2.10 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-022 Hart Bur, Busch 2.2 mm dia. 2.20 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-023 Hart Bur, Busch 2.3 mm dia. 2.30 mm
$3.11
  • (6 or more) $2.49
  • (36 or more) $2.18
331-156-025 Hart Bur, Busch 2.5 mm dia. 2.50 mm
$4.71
  • (6 or more) $3.77
  • (36 or more) $3.30
331-156-027 Hart Bur, Busch 2.7 mm dia. 2.70 mm
$4.71
  • (6 or more) $3.77
  • (36 or more) $3.30
331-156-029 Hart Bur, Busch 2.9 mm dia. 2.90 mm
$4.71
  • (6 or more) $3.77
  • (36 or more) $3.30
331-156-031 Hart Bur, Busch 3.1 mm dia. 3.10 mm
$5.67
  • (6 or more) $4.54
  • (36 or more) $3.97
331-156-033 Hart Bur, Busch 3.3 mm dia. 3.30 mm
$5.67
  • (6 or more) $4.54
  • (36 or more) $3.97
331-156-035 Hart Bur, Busch 3.5 mm dia. 3.50 mm
$5.67
  • (6 or more) $4.54
  • (36 or more) $3.97
331-156-037 Hart Bur, Busch 3.7 mm dia. 3.70 mm
$5.67
  • (6 or more) $4.54
  • (36 or more) $3.97
331-156-040 Hart Bur, Busch 4 mm dia. 4.00 mm
$6.12
  • (6 or more) $4.59
  • (36 or more) $4.28
331-156-042 Hart Bur, Busch 4.2 mm dia. 4.20 mm
$6.12
  • (6 or more) $4.59
  • (36 or more) $4.28
331-156-045 Hart Bur, Busch 4.5 mm dia. 4.50 mm
$6.12
  • (6 or more) $4.59
  • (36 or more) $4.28
331-156-047 Hart Bur, Busch 4.7 mm dia. 4.70 mm
$6.12
  • (6 or more) $4.59
  • (36 or more) $4.28
331-156-050 Hart Bur, Busch 5 mm dia. 5.00 mm
$6.12
  • (6 or more) $4.59
  • (36 or more) $4.28