20pcs 0.5mm Carbide CNC Engraving Circuit Board Micro PCB Drill Bits Shelf Pins Inner Diameter x Outer Diameter:

Inner Diameter x Outer Diameter: 11 x 13 mm

Cover Glass Edge Length: 10mm (approx)

Screw Length: 60mm/2

2 x T-Handle Draw Latches

20pcs 0.5mm Carbide CNC Engraving Circuit Board Micro PCB Drill Bits Shelf Pins Inner Diameter x Outer Diameter:Features: Cutting Edge Diameter (CED): 0. 5mm Cutting Edge Length: 7mm Shank Diameter: 3mm 1 8" (approx.) Overall Length: 38mm 1 1 2" (approx.) Cutting Edge Material: Tungsten Carbide Shank Material: HSS (High Speed Steel) Package Included: 2 Set (20 Pcs) x PCB Drill Bits with Protection Box Description: 1. Long Tool Life: With high hardness, high wear resistance, high strength, resistance to bending, anti impairment. Long lasting bits are made from