Busch® Bur Sets - Stone Setting Fig 413

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The Busch® Fig 413 stone setting burs differ slightly from hart burs because they have a straight side. They are excellent for setting round, symmetrical diamonds. They are used to cut seats into prong, bezel and tube settings. Because they have an ideal angle for round stones, they are often used to rough out a seat for a round stone that may later be refined with a hart bur. The stone setting bur size chosen must match the stone size exactly. If the stone is asymmetrical or the size doesn't match, stone setting bur use may be somewhat restricted. Made of tungsten vanadium steel for strength and durability. Use with a lubricant such as Gesswein Lube-Stik (see related products) to facilitate cutting and prolong tool life.

The 3/32" shanks measure approximately 1.75" long. Maximum operating speed varies with bur size. Please consult with ANSI (American National Standards Institute) for speed recommendations.

See the charts below to see the two sets and which burs are available in each set. Made in Germany.

Item #121-8541
Set of 16, Popular 010 - 080
Stone Setting Set of 16 stone setting burs
Bur Size: 010 012 017 020 022 025 027 030 037 040 045 050 055 060 070 080
Working Diameter: (mm) 1.00 1.25 1.75 2.00 2.25 2.50 2.75 3.00 3.75 4.00 4.50 5.00 5.50 6.00 7.00 8.00
Working Length: (mm) 0.90 1.12 1.57 1.80 2.02 2.25 2.47 2.70 3.37 3.60 4.05 4.50 4.95 5.40 6.30 7.20
Item #121-8545
Set of 10, 010 - 032
Stone Setting Set of 10 stone setting burs
Bur Size: 010 012 015 017 020 022 025 027 030 032
Working Diameter: (mm) 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25
Working Length: (mm) 0.90 1.12 1.35 1.57 1.80 2.02 2.25 2.47 2.70 2.92
Item #121-8550
Set of 11, 035 - 080
Stone Setting Set of 10 stone setting burs
Bur Size: 035 037 040 042 045 047 050 055 060 070 080
Working Diameter: (mm) 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.50 6.00 7.00 8.00
Working Length: (mm) 3.15 3.37 3.60 3.82 4.05 4.27 4.50 4.95 5.40 6.30 7.20
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