Features:

100% brand new and high quality.

Suitable for drilling， tapping， cutting on soft metal， aluminum plate， iron and etc.

Fast replacement composite cone， uses drill edged principle.

Drilling and tapping in one， one-step processing， improve working efficiency.

Self-centering point， do not need assistant center drilling or center punching.

Hand hardness， rustproof， solid and durable.



Specifications:

Item type: hexagon handle compound tap drill bits

Metric : M3， M4， M5， M6， M8， M10

Material: High-speed steel(HSS )

Suitable for soft metal， aluminum， iron



Size:

M3: Total length: 55mm/2.17”， Spiral length: 24mm/0.94”， drill diameter: 2.5mm/0.10”

M4: Total length: 54mm/2.13”， Spiral length: 24mm/0.94”， drill diameter: 3.3mm/0.13”

M5: Total length: 58mm/2.28”， Spiral length: 28mm/1.10”， drill diameter: 4.2mm/0.17”

M6: Total length: 58mm/2.28”， Spiral length: 28mm/1.10”， drill diameter: 5.0mm/0.20”

M8: Total length: 59mm/2.32”， Spiral length: 18mm0.71”， drill diameter: 6.8mm/0.27”

M10: Total length: 59mm/2.32”， Spiral length: 20mm/0.79”， drill diameter: 8.5mm/0.33”



Package includes: 6pcs hexagon handle compound tap drill bits