3mm Shank Diamond Mounted Points Alloy Grinding Needle, 30pcs Set

Features:

• Assorted shapes and sizes include: ball, cone, rounded cylinder, flat top cylinder, tapered & needle point.
• Compatible with most die grinders or rotary tools,Used for sculpturing, dressing, precision grinding.
• Uses: Can be used for the production of furniture, handicrafts, molds, music, a variety of model aircraft, ship model , etc.
• Highly recommended for carving and cutting stones, rocks and mortar, DIY engraving hobbies, craft modeling,etc.
• New one box set of 30 pieces diamond coated burrs / pointed heads in box set. They will fit your hand drill, drill press & your Dremel and Foredom tool with a 1/8" collet. Included 1/16" (1.59mm) diamond drill bits in a fine grit, for drilling glass, shells, tile and stone. Overall length is 40mm to 50mm (1 5/8 inch to 2 inch). Shank diameter : 3.175mm (1/8 inch). Premium type diamond coated in GRIT 300 (fine). Suitable for glass, marble, rock or jewelry.

Specification:
Material: alloy
Quantity: 30pcs set
Length: 45mm/1.77 inches (Approx.) 
Weight: 2.11g/needle (Approx.), total 103.4g with box
Shank Diameter: 3mm

→ Please allow a certain range of errors due to manual measurement.