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Knipex 44 21 J21 SBA internal retaining ring pliers black plastic-dipped handles 90 degree tip

Knipex

Knipex 44 21 J21 SBA Retaining Ring Plier Internal 0.070 Tip 90 Deg

SKU CH-NM9Z-K5BSM

Internal retaining-ring pliers with 90-degree 0.070-inch tips, chrome-vanadium steel, DIN 5254 B

  • Product typePliers
  • Main materialChrome Vanadium Electric Steel
  • Color and finishBlack
  • Internal bore range 3/4 in to 2-3/8 in
  • Fixed 0.078 in tip diameter for secure grip
  • 90-degree angled tips reach confined spaces
  • Chrome vanadium electric steel resists wear
  • DIN 5254 B standard ensures quality

Knipex Internal Retaining Ring Pliers 90°

These Knipex pliers are built for removing and installing internal retaining rings. The 90-degree angled tips reach into bores from 3/4 in to 2-3/8 in. Forged from chrome vanadium electric steel, they meet DIN 5254 B standards for professional use.

Mechanics needing 90-degree internal ring access

Technicians working on transmissions, hydraulic cylinders or gearboxes will value the fixed .078 in tips and 6 3/4 in overall length. The plastic-dipped handles provide grip without a spring return mechanism. This tool does not suit external ring jobs or straight-tip requirements.

Fixed .078 in tip diameter at 90 degrees

The tip diameter of .078 in and 90-degree angle determine which internal retaining rings fit. Verify the ring groove dimensions match these specifications before purchase. The black finish resists corrosion in workshop environments.

How it compares

Measured against everything we stock in Pliers, Wrenches & Gripping Tools, at today’s prices. Recalculated every night.

Price $25.99
Typical for this category: the median of 2,110 items is $23.99.

Specifications

Product
Brand nameKnipex
Model name44 21 J21 SBA
Product typePliers
Color and finishBlack
Size & build
Main materialChrome Vanadium Electric Steel

Questions about this item

Will the 0.070-inch tips on the 44 21 J21 SBA wear down and need replacement?

The fixed tips are machined from Chrome Vanadium Electric Steel and are not designed to be replaced; they should be inspected for deformation after heavy use.

What is the first limit reached when using these pliers continuously on internal rings at the 2-3/8 inch bore maximum?

The 0.078-inch tip diameter and 90-degree angle define the maximum bore capacity; exceeding this risks tip distortion or ring damage.

How much heat builds up in the plastic-dipped handles during all-day repetitive use?

The handles are plastic-dipped for grip and insulation; they do not generate heat themselves, though user friction may warm them slightly.

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