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High Speed Steel 90-Degree Bearing Burs .90mm-11.10mm - Otto Frei
Spearhead

High Speed Steel 90-Degree Bearing Burs .90mm-11.10mm

Part # 119.421 Only 2 left Weight -- lb / -- g
$5.35
Volume pricing
Total qty Discount Per unit You save
1 — $5.35 —
2 – 3 5% off $5.08 $0.27
4 – 11 7% off $4.98 $0.37
12 + 10% off $4.81 $0.54
Add 1 more for 5% off, saves another $0.27 each.
Bur Size: .90mm

Spearhead High Speed Steel (HSS) 90-degree bearing burs are hand cut by expert craftsmen in the USA, delivering the edge retention and long service life that quality jewelers demand. Each bur is size-stamped on its 3/32" shank for instant, at-a-glance identification—a hallmark of the Spearhead line. Compared to imported Tungsten Vanadium Carbon Steel burs, these HSS burs hold their edge longer thanks to the superior hardness of high speed steel, making them the preferred choice for professional stone setting work. Available in 33 sizes ranging from 0.90 mm to 11.10 mm, sold individually.

Features

  • Hand cut by expert craftsmen in the USA
  • High Speed Steel (HSS) construction for superior hardness and edge retention
  • 90-degree bearing bur geometry for precise stone seat cutting
  • Size stamped on shank for quick, reliable identification
  • Longer service life compared to imported Tungsten Vanadium Carbon Steel burs
  • Available in 33 sizes to accommodate a wide range of stone settings

Specifications

Material High Speed Steel (HSS)
Bur Type 90-Degree Bearing Bur
Shank Size 3/32"
Size Range 0.90 mm – 11.10 mm
Number of Sizes 33
Origin USA
Sold Individually

Available Options

Part # Bur Size Bur No.
119.421 0.90 mm 1
119.422 1.10 mm 2
119.423 1.30 mm 3
119.424 1.50 mm 4
119.425 1.70 mm 5
119.426 1.90 mm 6
119.427 2.10 mm 7
119.428 2.30 mm 8
119.429 2.50 mm 9
119.430 2.70 mm 10
119.431 2.90 mm 11
119.432 3.10 mm 12
119.433 3.30 mm 13
119.434 3.50 mm 14
119.435 3.80 mm 15
119.436 4.00 mm 16
119.437 4.30 mm 17
119.438 4.50 mm 18
119.439 4.70 mm 19
119.440 5.00 mm 20
119.442 5.20 mm 22
119.443 5.40 mm 23
119.444 5.60 mm 24
119.445 5.90 mm 25
119.446 6.30 mm 26
119.447 6.70 mm 27
119.448 7.20 mm 28
119.449 7.60 mm 29
119.450 8.00 mm 30
119.451 8.90 mm 31
119.452 9.60 mm 32
119.453 10.40 mm 33
119.454 11.10 mm 34
California Prop 65 Warning California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.
Brand
Spearhead
Part #
119.421
Type
Burs
Dimensions
1.55 in x 0.1 in x 0.1 in
Material
High Speed Steel (HSS)
Bur Type
90-Degree Bearing Bur
Shank Size
3/32"
Size Range
0.90 mm – 11.10 mm
Number of Sizes
33
Sold
Individually