Not bosch’s HSS twist drill bits for plastic

knoba - not boschs hss twist drill bits for plastic

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Tip angle 60°, flat 4° rake, clearance angle 12°
knoba - not boschs hss twist drill bits for plastic

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Plier Rack

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The Plastics Distributor and Fabricator – Drill Grind Geometry

knoba – Plier Rack

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