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BEYOND S16Q-STQNR16 Internal Boring Bar 16mm Shank 180mm Length Screw Fastened Right Hand 91-Degree TNMG 1604 Lathe Turning Tool Holder
$18.52 USD
⚠️ INDUSTRIAL SUPPLY NOTICE: The indexable carbide cutting insert is NOT included with this boring bar package. Product images showing a mounted insert are provided strictly to illustrate geometric clearance,...
BEYOND STQNR/L CNC Turning Boring Bar – Screw-On Type for TNMG Inserts
The BEYOND STQNR/L series boring bar is designed for external turning using TNMG triangle inserts. Featuring a steel shank, screw-on clamping (S type), and a 105° cutting edge angle (Q), this toolholder provides excellent rigidity, chip evacuation and stability for medium–heavy machining.
Key Features
- Compatible Insert: TNMG + last two digits (16)
- Clamping Method: S (Screw-On)
- Insert Shape: T – Triangle
- Cutting Edge Angle: Q = 105°
- Relief Angle: N – 0° Negative
- Hand of Tool: R / L
- Shank Type: S – Steel Shank
ISO Code Explanation
| Position | Meaning | Value in STQNR/L |
|---|---|---|
| 1st Letter | Type of Bar | S = Steel Shank |
| Next 2 Digits | Shank Diameter | 16 / 20 / 25 mm |
| Next Letter | Bar Length Code | Q (180), R (200), S (250) |
| After Dash – 1st Letter | Clamping Method | S = Screw-On |
| 2nd Letter | Insert Shape | T = Triangle |
| 3rd Letter | Cutting Edge Angle | Q = 105° |
| 4th Letter | Relief Angle | N = 0° Negative |
| 5th Letter | Hand of Tool | R / L |
| Last Digits | Insert Edge Length | 16 |
Compatible Inserts
TNMG16 Series (universal triangular inserts for steel, stainless steel, cast iron).
Available Models
| Model | Shank Diameter (mm) | Bar Length Code | Hand | Insert Type |
|---|---|---|---|---|
| S16Q-STQNR16 | 16 | Q (180 mm) | Right | TNMG16 |
| S16Q-STQNL16 | 16 | Q (180 mm) | Left | TNMG16 |
| S20R-STQNR16 | 20 | R (200 mm) | Right | TNMG16 |
| S20R-STQNL16 | 20 | R (200 mm) | Left | TNMG16 |
| S25S-STQNR16 | 25 | S (250 mm) | Right | TNMG16 |
| S25S-STQNL16 | 25 | S (250 mm) | Left | TNMG16 |
Applications
- External turning
- Medium to heavy cutting
- Steel, stainless steel, alloy steel, cast iron
- General CNC lathe machining
Search Keywords
STQNR boring bar, STQNL toolholder, TNMG insert holder, screw-on turning bar, steel shank CNC toolholder, external turning tool, 105 degree lead angle bar, BEYOND tool holders, CNC lathe toolholder, heavy turning bar.