Circuit board pcb drill 0.275mm, product specifications: diameter: 0.1mm blade length: 1.8mm, diameter: 0.15mm blade length: 2.7mm, diameter: 0.2mm blade length: 3.5mm, diameter: 0.25/0.275/0.3mm blade length : 4.5mm, diameter: 0.35mm blade length: 5.5mm, diameter: 0.4mm blade length: 6.0mm, diameter: 0.45/0.5/0.55mm blade length: 7mm, diameter: 0.6-1.2mm blade length: 8-10mm, Shank diameter 3.175mm Full length: 38mm, Processing range: PCB, SMT, CNC, mold, engraving, plastic, copper, stainless steel and other hardware processing. Excellent performance - The drill has a large chip removal space, reduces cutting force and drill breakage, has small chip removal resistance, smooth chip removal, and improves the quality of the hole wall. Impeccable Practicality---The PCB drill is easy to replace and cuts the PCB well for solder holes. In a great storage container, you can easily grab the bits you need when you need them. Quantity: (10 pieces) circuit board pcb drill bit 0.275mm, other products are not included Color: as shown, positioning ring [color random delivery] Note, because there may be color and size differences between the light effect photos and the actual product, please allow 1-2 cm error