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Foredom Cobalt Steel Step Drills, 17 head sizes from .5mm - 2.3mm or 10-pc Assortment


Handling 7-10 business days

  • $28.74

Model: A-8005

Brand new in its original packaging

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    30 days returns. See details

A-8005 - .5 mm, A-8006 - .6 mm, A-8007 - .7 mm, A-8008 - .8 mm, A-8009 - .9 mm, A-8010 - 1. 0 mm, A-8011 - 1. 1 mm, A-8012 - 1.2 mm, A-8014 - 1.4 mm, A-8015 - 1.5 mm, A-8016 - 1.6 mm, A-8017 - 1.7 mm, A-8018 - 1.8 mm, A-8020 - 2.0 mm, A-8021 - 2.1 mm, A-8022 - 2.2 mm, A-8023 - 2.3 mm or AK8000: includes: A-8005, A-8007, A-8009, A-8011, A-8012, A-8014, A-8016, A-8018, A-8020, and A-8022.

Drills are solid cobalt steel and outlast high speed steel (HSS) bits 15 to 1.

Note: For all International Orders, the buyer will be solely responsible for the customs clearance, duty, and taxes imposed on the package.

Speed Recommendations:

Drilling speeds should be between 500 and 10,000 rpm. All drilling should be done with a lubricant. The harder the material (metal) to be drilled and the larger the hole size, the slower the drill speed.

Material 1mm (1/16) Drill 2.35mm (3/32) Drill

Aluminum 7,000-8,000 5,000-6,000

Mild Steel 3,000-3500 2,000-3,000

Stainless Steel 1,000-2,000 500-1,000

Brass, Silver, Copper 5,500-6,500 4,000-5,000

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