Maximum safe speed varies with bur size and is indicated on the box. Use a good lubricant, such as Gesswein Lube-Stik, to facilitate cutting and prolong tool life. Burs measure approximately 1-3/4" long with 3/32" shank. Made in Germany.
Busch Cross-Cut Square Burs are available in diameters 0.50 to 3.10mm.
Sold in packages of 6
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