PLEASE pay attention to the size before buying
Specification
Drilling Dia: 3.0mm, Total Length: 46mm, Working Length: 11mm.
Drilling Dia: 3.2mm, Total length: 49mm, Working Length: 14mm.
Drilling Dia: 3.5mm, Total length: 49mm, Working Length: 15mm.
Drilling Dia: 4.0mm, Total length: 49mm, Working Length: 16mm.
Drilling Dia: 4.2mm, Total length: 50mm, Working Length: 17mm.
Drilling Dia: 4.5mm, Total length: 52mm, Working Length: 18mm.
Drilling Dia: 5.0mm, Total length: 57mm, Working Length: 19mm.
Drilling Dia: 5.2mm, Total length: 58mm, Working Length: 20mm.

Features:
❶Made of 9341 high-speed steel (which is better performance than M2 HSS) for an optimal blend of strength, heat resistance and wear resistance. Fast drilling, saving your time and energy..
❷ Precision ground, bright finish with polished flutes that increase chip ejection, improve work efficiency.
❸ Double End 135 Deg. Split Point Drill Angle to guarantee the best self-centering and positioning and drill smooth and quicker than normal point angle.
❹ 8 different drilling Dia, 3.0mm, 3.2mm, 3.5mm, 4.0mm, 4.2mm, 4.5mm, 5.0mm, 5.2mm. Double end design allows for double the lifespan of ordinary bits (Please pay attention to the size before buying).
❺ Our drill bit set perfect for drilling metal, wood and plastic, such as stainless steel, angle steel, Iron sheet, copper, aluminum etc.

Package Include
3 x 3.0mm twist drill bits
3 x 3.2mm twist drill bits
3 x 3.5mm twist drill bits
3 x 4.0mm twist drill bits
3 x 4.2mm twist drill bits
3 x 4.5mm twist drill bits
3 x 5.0mm twist drill bits
3 x 5.2mm twist drill bits