B&M Pintool · Spring Pin / Roll Pin Insertion Tool

Spring Pin Insertion Tool

Black Pintool on a white background
Not sure? Match it to your pin

The part number matches your pin's nominal size. A 1/8″ pin uses PT-125 — even though it measures ~.135″ relaxed, because a spring pin is made oversized so it grips. See the reference chart.

Selected size
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$134.99 per tool
Choose your pin size
Nominal pin / hole Decimal Ø Part no.
Quantity
Made in USA
Machined in Belleville, NJ
Family-owned since 1947
Three generations
In stock
Ships in 1–2 business days
30-day returns
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Why this beats a cheap punch

A punch drives the pin. This places it.

Pin can't fall over

The magnet holds the spring pin square to the bore before you apply any force — no third hand, no pins dropped into the assembly.

No peened or bent ends

The guide sleeve surrounds the pin as it presses, so it can't walk side-to-side or mushroom over — clean every time.

Repeatable across a run

Hand, hammer, or arbor press — consistent seating depth on part 1 and part 500. Built to last on a production line.

How it works

Four steps to a clean, square pin

The magnet does the holding and the guide does the aiming — so the pin goes in straight whether you tap it, press it, or seat it by hand.

Load the pin
Step 01

Load the pin

Drop the spring pin onto the magnetic tip. It stays put — no pinching, no dropping into the assembly.

Reach the bore
Step 02

Reach the bore

Slim body gets into tight, hard-to-reach locations — bring the tool to the job, not the job to the bench.

Press it home
Step 03

Press it home

By hand, hammer, or press. The guide stops the pin walking side-to-side or peening over.

Tool retracts
Step 04

Tool retracts

The spring pulls the guide back automatically — pin seated flush, tool ready for the next one.

See it in action

Watch the Pintool seat a pin

Free tool · The chart that picks the pin

Find your pin in the Spring Pin Reference Chart

Most people land here from our free reference chart. Look up your hole or pin diameter, read across to the recommended B&M Pintool, and order the matching part number. No guessing on relaxed vs. nominal size.

Open the reference chart →Download Blueprint (PDF)
Pin Ø → Pintool
Nominal pinDecimal ØPintool
1/16″.0625″PT-062
3/32″.0938″PT-094
1/8″.1250″PT-125
3/16″.1875″PT-187
1/4″.2500″PT-250
12 sizes · 1/16″–1/4″ & 2–6mm

Questions

Sizing & fit

Which Pintool do I buy?

Match the part number to your pin's nominal size — a 1/8" pin in a 1/8" hole takes the 1/8" tool, part number PT-125. Spring pins are made oversized so they grip, so a 1/8" (.125") pin measures larger when relaxed — around .135" — then contracts as you press it in and expands to lock once seated. That's expected. Still unsure? Open the Spring Pin Reference Chart and read across from your hole size.

Spring pin, roll pin, slotted pin — are they the same thing?

Yes — all three name the same hollow, slotted spring-steel pin. "Spring pin" and "slotted pin" are the engineering terms; "roll pin" is the common shop name. The Pintool installs all of them.

Does the Pintool remove pins?

No — it's an insertion tool. It seats spring pins; it doesn't extract them.

Can I use a stainless steel pin?

Yes. The tool works with stainless, carbon-steel, and most standard spring-pin materials. The magnetic tip holds ferrous pins; for non-magnetic stainless the guide sleeve still keeps the pin square — you just seat it without the magnetic hold.

Will the Pintool fit in a tight space?

The body is slim to reach into tight assemblies, but clearance varies by size. Check the tool's outer diameter for your part number against your access opening. If you're working in a confined fixture, contact us with your dimensions and we'll confirm fit before you buy.

Do you take high-volume or custom orders?

Yes. B&M is a precision CNC shop first — the Pintool is one product we make. For production runs we run blanket-release pricing, and we can make custom sizes or a modified guide. For 10 or more units or a special, request a quote.