Estool manufactures TPMX inserts for indexable deep hole drilling, in the carbide grades and coatings that suit your workpiece material. Every insert is ground in-house to the original geometry, so chip breaking and hole straightness stay consistent from the first part to the last. Send us the code you run and we will quote it, usually within 24 hours and with no minimum order.
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Browse the TPMX insert sizes and grades we hold tooling for, or ask our engineers to match the substrate, coating and chipbreaker to your application. Custom corner radii and edge preparation are normal orders for us rather than special projects, because all grinding and coating happens in our own workshop.
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Tell us the insert code or drawing you need and our engineers will quote it for you.
Direct from our factory in Zhuzhou, Hunan — the carbide capital of China.
Founded in 2018 in Zhuzhou, China's cemented-carbide capital. Real workshop photos, production videos and machining case studies are available for every product line on request.
Our team is trained in materials science and mechanical engineering with 10+ years of carbide experience. Send your workpiece material and cutting conditions, and we will recommend the right grade and geometry for free.
CNC grinding and PVD/CVD coating lines run under a strict quality system. Every batch ships with an inspection report, and third-party testing (SGS / TÜV) is welcome before shipment.
Factory-direct pricing with no hidden fees. A formal sales contract covers every order, verified quality issues are replaced free of charge, and orders ship worldwide within 3–7 days.
TPMX inserts are pressed, sintered, ground and coated under one roof, with dimensional inspection before packing. That control is what lets us hold tight tolerances on deep hole drilling inserts and still quote direct factory prices.
Comparing TPMX with another deep hole drilling insert? Ask for a mixed trial order and test both on your own machines before you commit to volume.
Tell us the grade, size and quantity you need, our engineers will reply with the best price within 24 hours.
Tell us the model, grade and quantity — our engineers reply with pricing within 24 hours.
