S16Q-STQNR16 Internal Boring Bar Tool Holder for CNC Lathe, 16mm Diameter, 180mm Length

$16.84 USD

Overview: The S16Q-STQNR16 Internal Boring Bar Tool Holder is a precision tool designed for CNC machine tools and lathes. Crafted from durable alloy steel, it features a 105° cutting edge...

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BEYOND STQNR/L Turning Boring Bar | Screw-On Type | For TNMG Inserts

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.