MAKITA ดอกเจาะ COUNTERSINK BIT ขนาด 1/2″ 5/8″ 3/4″ (B-30097 B-30106 B-30112) ดอกเจาะผาย Counter Sink Titanium

Ideal for forming countersinks, de-burring holes, bevelling insides of small diameter pipes and more! - Titanium-Nitride (TiN) coating offers improved bit hardening, corrosion resistance and up to 2-1/2 times longer life versus uncoated bits