74-pc Unmounted Silicone Bonded Abrasive Assortment with Mandrels, AK11988M

Unmounted Extra long-lasting Silicone Bonded abrasives have silicon carbide, silicon dioxide and aluminum oxide abrasive compound in a silicone binder. They are suitable for grinding, smoothing, and cleaning glass, high speed steel, and other tough materials.
Includes Foredom 3/32″ shank: A-M9 threaded mandrel and A-M1 screw mandrel.
4 abrasive grits in 3 shapes with 1/16″ Arbor Holes – listed below. 

Abrasive Color/Grit: Black /Coarse, Brown /Medium Coarse, Green /Fine, Blue/ Extra Fine

• 6 – Wheels of each grit 22 x 3 mm (.866″ x .118″)
• 6 – Tapered discs of each grit  22 x 3.5 mm (.866″ x .138″)      
• 6 – Cylinders of each grit 7  x 20 mm  (.275″ x .787″)

Also can be used with A-M1, A-M6, A-M13, A-M15 or A-M19 mandrels.

10,000 RPM Max Speed. Made in USA.