BB Step Drill 90 Degree 180 CNC Precision Solid Carbide Drilling Tools DLC Coated Screw Hole 硬质合金铣刀 2 D4 10 50 4T

2 D4 10  50  4T 4R0

making chip removal more efficient

stars or other special shapes

Specification Guide

BB Step Drill 90 Degree 180 CNC Precision Solid Carbide Drilling Tools DLC Coated Screw Hole 硬质合金铣刀 2 D4 10 50 4TExample 1x5xD4x10x50 d=1mm, L1=5mm,D2=4mm,L2=10mm,Overall Length=50mm Once Formed Drilling+Chamfering The blade edge is sharp without burrs, easy chamfering Greatly improves work efficiency. Solid Carbide Bars High Hardness High Wear Resistance A specialized tool for high hardness and high speed cutting applications with higher wear resistance and strength Nano Diamond Coating Enhance tool hardness and service life, improve machine tool productivity,