Features
Ko-ken ratchets are known for their very low backlash, small head sizes, and high torque ranges. We designed the new 72 tooth ratchet without compromising on our traditional strengths. The patented design of the 72T combines the low backlash, small size, and has a 10% higher torque limit in comparison to the 36 tooth ratchet. The legacy 36 tooth ratchets move 10°/click. The new 72 tooth ratchets move 5°/click. The design changes include moving from the single pawl of the 36 tooth design to the patented dual pawl of the 72 tooth design. The dual pawl 72 tooth design utilizes a single spring. We took four years of testing to perfect the low spring pressure needed to maintain Ko-ken's hallmark low-torque backlash. The finer 72 teeth design creates more surface area contact with the gear; thus, it has a 10% higher torque upper limit.
Ko-ken 4725ZB 1/2 Sq. Dr. Ratchet Handle 72 teeth Length 253mm Quick Release Z-series
- Ratchets & Handles
- Ko-Ken Tools
- 4725ZB
Gear Teeth : 72 Teeth
Input Drive Size : 1/2 Inch
High torque ranges
Drive Shape : Square
T Size : 32.8mm
D Size : 36.5mm
H Size : 18.2mm
72 Tooth Z-Series Ratchets with quick release button mechanism. The patented design of the 72T incorporates dual pawls. Ko-ken has ensured that their hallmark low backlash and small size are preserved. Through extensive testing over four years, they have achieved a delicate balance of low spring pressure to maintain the low-torque backlash characteristic of Ko-ken tools. Additionally, the finer 72 teeth design provides increased surface area contact with the gear, resulting in a 10% higher torque upper limit.
Upgrade your toolbox with Ko-Ken Tools, a brand synonymous with top-tier precision craftsmanship. From industry-standard wrenches and sockets to versatile pliers and reliable screwdrivers, Ko-Ken Tools delivers the perfect blend of durability and accuracy. Trusted by professionals and tailored for enthusiasts, each tool is a testament to excellence, ensuring unparalleled performance in every project. Elevate your workmanship with Ko-Ken Tools - where quality meets innovation.
