Kyocera 16ERG55-TF PR1115 Threading Insert | 55° Partial Profile
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16ERG55-TF PR1115
Kyocera Precision Tools | Advanced PVD Threading Performance
The Kyocera 16ERG55-TF PR1115 is a high-precision laydown threading insert designed for external 55° thread profiles. Featuring a partial profile design, this versatile tool covers a wide range of TPI (Threads Per Inch) requirements. The integrated TF Chipbreaker is specifically engineered to handle the difficult chip evacuation typical of stainless steel threading and low-carbon steels, ensuring a clean finish and preventing "bird-nesting" on your CNC lathe.
Model Specification Decoded
Size (3/8" IC)
Ext. Right Hand
Partial Profile
55° Angle
Chipbreaker
PVD Grade
Technical Dimensions
| Thread Standard | Whitworth (W), BSW, BSPT, G (PF) |
|---|---|
| TPI Range (Inch) | 28 - 14 TPI |
| Pitch Range (Metric) | 0.5 - 1.75 mm |
| Inscribed Circle ($IC$) | 9.525 mm (3/8") |
PR1115 MEGACOAT Technology
The PR1115 grade features Kyocera's proprietary PVD coating. It is a high-hardness, heat-resistant grade designed specifically for stainless steel machining. It provides superior resistance to built-up edge and flank wear, making it the primary choice for precision components in the medical and aerospace industries.
TF Chipbreaker Geometry
The TF molded chipbreaker is a game-changer for threading. By controlling the chip flow during each pass, it reduces cutting resistance and prevents surface damage. This geometry allows for more aggressive feed rates and fewer passes, directly increasing throughput on your production line.
Recommended Cutting Parameters
Optimized for Threading PR1115 Grade
| Workpiece Material | Cutting Speed ($v_c$) | No. of Passes |
|---|---|---|
| Stainless Steel (SUS304/316) | 60 - 120 m/min | 8 - 14 |
| Carbon/Alloy Steel | 80 - 150 m/min | 6 - 12 |
COMPATIBLE THREADING TOOL HOLDERS
This insert fits all standard 16ER series laydown tool holders, including the Kyocera KTN / KTNS series.
View External Threading Holders →
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This kyocera insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.