Name: High Speed Steel 45-Degree Bearing Burs 1.10mm-11.10mm
Brand: Spearhead
SKU: 119.383
Price: 5.35 USD
Availability: InStock

Bur Size	Part #	Price
1.30mm 7 in stock	119.383	$5.35
1.50mm Out of Stock	119.384	$5.35
1.70mm 3 in stock	119.385	$5.35
1.90mm 3 in stock	119.386	$5.35
2.10mm 5 in stock	119.387	$5.35
2.30mm 3 in stock	119.388	$5.35
2.50mm 8 in stock	119.389	$6.80
2.70mm Out of Stock	119.390	$6.80
2.90mm 4 in stock	119.391	$6.80
3.10mm 5 in stock	119.392	$6.80
3.30mm 9 in stock	119.393	$8.25
3.50mm 4 in stock	119.394	$8.25
3.80mm 7 in stock	119.395	$8.25
4.00mm 1 in stock	119.396	$8.25
4.30mm 3 in stock	119.397	$8.25
4.50mm Out of Stock	119.398	$8.25
4.70mm 7 in stock	119.399	$9.30
5.00mm 6 in stock	119.400	$9.30
5.20mm 3 in stock	119.402	$9.30
5.60mm 4 in stock	119.404	$9.30
6.30mm 3 in stock	119.406	$9.75
7.20mm Out of Stock	119.408	$9.75
8.00mm Out of Stock	119.410	$9.75
11.10mm 22 in stock	119.414	$12.95
1.10mm 2 in stock	119.382	$5.35

Spearhead High Speed Steel (HSS) 45° Hart Burs are precision hand-cut in the USA by expert craftsmen. Known for their exceptional sharpness, durability, and consistency, these burs are the professional jeweler’s choice for stone setting and precision metalwork.

Each Spearhead bur is stamped with its size on the 3/32" (2.35 mm) shank for quick identification. Made from premium HSS, they maintain a sharper edge longer and resist heat buildup better than imported tungsten vanadium burs, ensuring smoother, cleaner cuts and extended tool life.

Key Features

Made in the USA by skilled craftsmen
45° hart (heart) profile for precision stone seat cutting
High Speed Steel for superior hardness and edge retention
Hand-cut flutes for smoother operation and reduced chatter
Size permanently stamped on each 3/32" shank
Sold individually by size

Available Sizes

SKU	Bur Size (mm)
119.382	1.10 mm
119.383	1.30 mm
119.384	1.50 mm
119.385	1.70 mm
119.386	1.90 mm
119.387	2.10 mm
119.388	2.30 mm
119.389	2.50 mm
119.390	2.70 mm
119.391	2.90 mm
119.392	3.10 mm
119.393	3.30 mm
119.394	3.50 mm
119.395	3.80 mm
119.396	4.00 mm
119.397	4.30 mm
119.398	4.50 mm
119.399	4.70 mm
119.400	5.00 mm
119.402	5.20 mm
119.404	5.60 mm
119.406	6.30 mm
119.408	7.20 mm
119.410	8.00 mm
119.414	11.10 mm

Applications

Ideal for stone setting, particularly for creating seats in prongs and bezels
Suitable for use with flex shafts and micromotors accepting 3/32" shanks
Recommended for precious metals, gold, silver, platinum, and harder alloys

Notes

Sold individually by size. For best results, operate at moderate speed and use proper lubrication to extend bur life.

California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.

High Speed Steel 45-Degree Bearing Burs 1.10mm-11.10mm

Order Summary

Key Features

Available Sizes

Applications

Notes

Customer Reviews

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High Speed Steel 45-Degree Bearing Burs 1.10mm-11.10mm

Order Summary

Key Features

Available Sizes

Applications

Notes

Customer Reviews

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Country

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