API GL-4 Gear Oil, 5L 14NPT EXTERNAL INSERT if total length increase flute

if total length increase flute length remain same of double of diameter

EWN68-150 fine boring head has a range of 68 mm to 100 mm

TM4509 Grade is used in all General steel

TPGH080202/04L T20 grade is for steel and stainless steel

Protects against rust

API GL-4 Gear Oil, 5L 14NPT EXTERNAL INSERT if total length increase fluteAPI GL 4 Gear Oil is a high performance gear lubricant specially formulated to meet the demanding requirements of modern manual transmissions and axle systems. Engineered with premium base oils and balanced additive technology, it ensures smooth gear shifts, optimal load carrying capacity, and extended equipment life. This oil provides excellent thermal and oxidation stability, superior wear protection, and anti rust and anti corrosion performance in