Busch Fig 411C Fast Cut Concave Cone Cup Bur Kit of 16 Burs 1.00mm - 2.30mm Air Compressors while the other end features

while the other end features a slide gate sized for 3" hose

with all sticks measuring 50 mm long by 0

Produces stable

Acid testing with test needles is a subjective method

Busch Fig 411C Fast Cut Concave Cone Cup Bur Kit of 16 Burs 1.00mm - 2.30mm Air Compressors while the other end featuresCup burs are primarily used by jewelers for finishing and rounding the top of prongs during stone setting. The Busch Fig. 411C Fast Cut Concave Cone Cup Bur offers a distinct geometry compared to the standard Busch 77B concave cup bur its concave cone shape produces a more sharply sloped, rounded profile when finishing prong tips. This 16 piece kit is composed of Busch 411C Fast Cut Concave Cone Cup Burs in eight sizes ranging from 1. 00mm to 2. 30mm,