Grooving/Cut-Off Toolholder
NSL123A 3/4"H x 3/4"W x 4" OAL x 1"F Left Hand NS Toolholder
Fastenal Part No. (SKU)
Manufacturer Part No.
This is a Catalog Item
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Product Attributes
Cut Depth (in) 0.2100
Cut Depth (mm) 5.334
End Chamfer (in) 0.5000
End Chamfer (mm) 12.700
Gage Insert N.3L
Hand of Tool LEFT
Head Length (in) 1.2500
Head Length (mm) 31.750
ISO Code NSL123A
Mount Type Top Notch Clamp
Shank Height (in) 0.7500
Shank Height (mm) 19.050
Shank Width (in) 0.7500
Shank Width (mm) 19.050
System of Measurement Inch
Tool Length (in) 4.0000
Tool Length (mm) 101.600
Type Grooving/Cut-Off Toolholder
Product Weight 0.661
UOM each
The Top Groove & Top Thread system is the most rigid tool on the market. Locking forces in three directions on the insert offer superior resistance to thrust and tangential force. The simplistic design avoids costly set-up errors that can occur with laydown type threading tools. Accepts both threading and grooving inserts. First choice for heavy-duty or high-feed applications. The rigid tool results in better surface finishes. Excellent chip control. Consistent carbide grades provide long tool life. Multiple grooving and threading insert endforms available as standards.
  • Holder shipped with clamp and clamp screw
  • Left hand #3

Best choice for job shop environments. Especially effective for single-point threading of course pitches, Acme, Buttress, and API threads. Best for multi-tooth threading applications. Right-hand holders use right-hand inserts. Left hand holders use left-hand inserts
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