Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

KNIPEX Retaining Ring Plier: Internal, For 40 mm to 100 mm Bore Dia, 0.091 in Tip Dia - Internal Retaining-Ring Pliers
KNIPEXInternal Retaining-Ring Pliers

KNIPEX Retaining Ring Plier: Internal, For 40 mm to 100 mm Bore Dia, 0.091 in Tip Dia

The KNIPEX Retaining Ring Plier: Internal (MPN 44 21 J31 SBA) is an internal circlip plier designed for bore diameters from 40 mm to 100 mm, with a 0.091 in tip diameter and 8 1/2 in overall length. 3G Electric…

SKU 3G-OTH-735277

Also listed as: 4421J31SBA · 44-21-J31-SBA

Brand
KNIPEX
Item
Retaining Ring Plier: Internal, For 40 mm to 100 mm Bore Dia, 0.091 in Tip Dia
Category
Internal Retaining-Ring Pliers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

KNIPEX
Manufacturer Part Number
44 21 J31 SBA
Type
For 40 mm to 100 mm Bore Dia
Overall Lg
8 1/2 in
Tip Dia
0.091 in

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

KNIPEX Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The KNIPEX Retaining Ring Plier: Internal (MPN 44 21 J31 SBA) is an internal circlip plier designed for bore diameters from 40 mm to 100 mm, with a 0.091 in tip diameter and 8 1/2 in overall length. 3G Electric interprets customer demand and delivers this genuine industrial tool across 14 departments — and far more — with specialist depth in combustion, pumps and controls as a trust anchor.

Frequently Asked Questions

What is the KNIPEX 44 21 J31 SBA retaining ring plier used for?

The KNIPEX 44 21 J31 SBA is an internal retaining ring plier designed for installing and removing internal circlips in bores from 40 mm to 100 mm diameter. It is commonly used in industrial maintenance, automotive repair, and machinery assembly where secure ring placement is critical.

What are the specifications of the KNIPEX 44 21 J31 SBA?

This KNIPEX internal retaining ring plier has a tip diameter of 0.091 in, an overall length of 8 1/2 in, and fits bore diameters from 40 mm to 100 mm. It is designed for internal circlips and is not reversible. The manufacturer part number is 44 21 J31 SBA.

Where to buy KNIPEX retaining ring pliers worldwide?

3G Electric supplies the KNIPEX 44 21 J31 SBA retaining ring plier to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this genuine tool for your maintenance or assembly needs.

How to select the right internal retaining ring plier for a 60 mm bore?

For a 60 mm bore, select an internal retaining ring plier that covers that diameter range. The KNIPEX 44 21 J31 SBA fits bores from 40 mm to 100 mm, making it suitable. Ensure the tip diameter matches the ring holes and that the plier is designed for internal circlips, not external.

Used in

Common applications for KNIPEX
Electrical installation — KNIPEX ratcheting cable cutters (95 32 038) for cutting data cables up to 1 1/2 in diameter
Plumbing maintenance — KNIPEX Swedish pipe wrenches (83 30 010) for gripping and turning pipes up to 1 5/8 in
Automotive repair — KNIPEX end cutting pliers (50 01 225) for cutting wire and trimming fasteners
Electronics assembly — KNIPEX precision nippers (99 14 300) for cutting fine wire up to 0.16 in thickness
General maintenance — KNIPEX box end wrenches (98 01 14) for tightening metric bolts in confined spaces
Metalworking — KNIPEX bolt cutters (71 01 160) for cutting soft steel rods up to 3/16 in diameter

KNIPEX Products

3G Electric supplies KNIPEX internal retaining-ring pliers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Tongue and Groove Plier: V, Groove Joint, 2 in Max Jaw Opening, 10 in Overall Lg, 9 Jaw Positions (MPN 88 01 250)
KNIPEX
Tongue and Groove Plier: V, Groove Joint, 2 in Max Jaw Opening, 10 in Overall Lg, 9 Jaw Positions (MPN 88 01 250)
KIPP Indexing Plunger: Nonlocking, Steel, M8x1 Thread, 6 N to 15 N Nose Force (MPN K0630.22004)
KIPP
KIPP Indexing Plunger: Nonlocking, Steel, M8x1 Thread, 6 N to 15 N Nose Force (MPN K0630.22004)
KIPP Indexing Plunger: Nonlocking, SS, 1"-8 Thread, 20 N to 60 N Nose Force (MPN K0630.212516A8)
KIPP
KIPP Indexing Plunger: Nonlocking, SS, 1"-8 Thread, 20 N to 60 N Nose Force (MPN K0630.212516A8)
KIPP Indexing Plunger: Nonlocking, 18-8 SS Body w/ 400 SS Plunger, M6x0.75 Thread (MPN K0630.202903)
KIPP
KIPP Indexing Plunger: Nonlocking, 18-8 SS Body w/ 400 SS Plunger, M6x0.75 Thread (MPN K0630.202903)
KIPP Indexing Plunger: Nonlocking, SS, 3/4"-10 Thread, 15 N to 43 N Nose Force (MPN K0630.212410A7)
KIPP
KIPP Indexing Plunger: Nonlocking, SS, 3/4"-10 Thread, 15 N to 43 N Nose Force (MPN K0630.212410A7)
KIPP Indexing Plunger: Nonlocking, 18-8 SS Body w/ 400 SS Plunger, 3/4"-10 Thread (MPN K0630.202410A7)
KIPP
KIPP Indexing Plunger: Nonlocking, 18-8 SS Body w/ 400 SS Plunger, 3/4"-10 Thread (MPN K0630.202410A7)

More from KNIPEX

View all KNIPEX parts
Retaining Ring Plier: Internal, For 252 mm to 400 mm Bore Dia, 0.177 in Tip Dia, 90° Tip Angle (MPN 44 20 J61)
KNIPEX
Retaining Ring Plier: Internal, For 252 mm to 400 mm Bore Dia, 0.177 in Tip Dia, 90° Tip Angle (MPN 44 20 J61)
Retaining Ring Plier: Internal, For 12 mm to 25 mm Bore Dia, 0.051 in Tip Dia, 5 1/2 in Overall Lg (MPN 44 13 J1)
KNIPEX
Retaining Ring Plier: Internal, For 12 mm to 25 mm Bore Dia, 0.051 in Tip Dia, 5 1/2 in Overall Lg (MPN 44 13 J1)
Retaining Ring Plier: Internal, For 40 mm to 100 mm Bore Dia, 0.091 in Tip Dia, 8 7/8 in Overall Lg (MPN 44 31 J32 SBA)
KNIPEX
Retaining Ring Plier: Internal, For 40 mm to 100 mm Bore Dia, 0.091 in Tip Dia, 8 7/8 in Overall Lg (MPN 44 31 J32 SBA)
Retaining Ring Plier: Internal, For 8 mm to 13 mm Bore Dia, 0.035 in Tip Dia, 5 1/8 in Overall Lg (MPN 44 21 J01 SBA)
KNIPEX
Retaining Ring Plier: Internal, For 8 mm to 13 mm Bore Dia, 0.035 in Tip Dia, 5 1/8 in Overall Lg (MPN 44 21 J01 SBA)
Retaining Ring Plier: Internal, For 19 mm to 60 mm Bore Dia, 0.071 in Tip Dia, 7 1/8 in Overall Lg (MPN 48 11 J2)
KNIPEX
Retaining Ring Plier: Internal, For 19 mm to 60 mm Bore Dia, 0.071 in Tip Dia, 7 1/8 in Overall Lg (MPN 48 11 J2)
Retaining Ring Plier: Internal, For 8 mm to 13 mm Bore Dia, 0.035 in Tip Dia, 5 1/2 in Overall Lg (MPN 48 11 J0)
KNIPEX
Retaining Ring Plier: Internal, For 8 mm to 13 mm Bore Dia, 0.035 in Tip Dia, 5 1/2 in Overall Lg (MPN 48 11 J0)
Retaining Ring Plier: Internal, For 122 mm to 300 mm Bore Dia, 0.138 in Tip Dia, 0° Tip Angle (MPN 44 10 J5)
KNIPEX
Retaining Ring Plier: Internal, For 122 mm to 300 mm Bore Dia, 0.138 in Tip Dia, 0° Tip Angle (MPN 44 10 J5)
Retaining Ring Plier: Internal, For 19 mm to 60 mm Bore Dia, 0.071 in Tip Dia, 6 1/2 in Overall Lg (MPN 48 21 J21)
KNIPEX
Retaining Ring Plier: Internal, For 19 mm to 60 mm Bore Dia, 0.071 in Tip Dia, 6 1/2 in Overall Lg (MPN 48 21 J21)