Busch Fig 411C Fast Cut Concave Cone Cup Bur Kit of 16 Burs 1.00mm - 2.30mm

Cup 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, with two burs of each size included. The burs are made from Tungsten Vanadium steel and feature 3/32" diameter shafts. The kit arrives organized in a round plastic holder for convenient bench storage and size selection.

Features

• Concave cone geometry creates a more sharply sloped rounded shape on prong tips versus traditional concave cup burs
• Fast Cut design for efficient material removal during stone setting finishing work
• Tungsten Vanadium steel construction for durability and cutting performance
• German steel hardening expertise applied to every bur
• 3/32" diameter shafts for compatibility with standard flex-shaft handpieces and bur holders
• Two burs per size — eight sizes included — for a total of 16 burs
• Stored in a round plastic holder for organized bench access

Specifications

What's Included

• B118.413 Busch 411C Fast Cut Cup Bur — 1.00mm (qty 2)
• B118.414 Busch 411C Fast Cut Cup Bur — 1.20mm (qty 2)
• B118.415 Busch 411C Fast Cut Cup Bur — 1.40mm (qty 2)
• B118.416 Busch 411C Fast Cut Cup Bur — 1.50mm (qty 2)
• B118.417 Busch 411C Fast Cut Cup Bur — 1.60mm (qty 2)
• B118.418 Busch 411C Fast Cut Cup Bur — 1.80mm (qty 2)
• B118.419 Busch 411C Fast Cut Cup Bur — 2.10mm (qty 2)
• B118.420 Busch 411C Fast Cut Cup Bur — 2.30mm (qty 2)
• 119.248 Round Plastic Holder (qty 1)

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