Features This is a strong helical groove A-type center hole drill for drilling 90 center holes and can perform positioning and chamfering at the same time. Particularly suitable for soft or relatively sticky materials.
Use
Specification Aperture diameter (mm): 0.9Shank diameter (mm): 4Overall length (mm): 35Center hole angle ( ): 90Surface treatment: Non-coating Blade length (mm): 0.9Blade shape: double-edged
Specification2 Strong helix groove A type 90 center hole drill
Material/Finish High speed tool steel (HSS)
Set contents/accessories
caution
