Jones Jr. Called on a Sunday: A Kennametal Spade Drill Emergency and Insert Guide

The Call

The call came in on a Sunday afternoon. I had the Henry vs Bengals game on in the background—mostly for the noise—when my phone buzzed with a name I didn't expect: Dave Jones Jr.

Dave runs a small mold shop outside Milwaukee. They make molds for commercial tires. It's a job where tolerances matter and downtime costs more than any tool. His voice was tight.

'We need spade drills. Kennametal spade drills. And we need them by Tuesday.'

I checked the calendar. It was March 2024. Tuesday was 36 hours away.

The Real Problem

His usual vendor had a two-week lead time. Not ideal. Worse, the order wasn't just a reorder. It specified Kennametal spade drills, but no insert grade. That's like ordering a truck without saying which engine. The drill body matters, but the insert is where the cutting happens.

Dave explained the project: a set of tire mold segments in H13. The old tool had finally worn out, and the replacement from his previous supplier was stuck in a queue. 'Standard lead time' sounded fixed, but it wasn't. What most people don't realize is that standard lead time often includes buffer time that vendors use to manage their production queue. It's not necessarily how long your order takes.

I ran through the questions I always ask: how much time, can we make it, and what's the worst case if we don't. The answer to the first was 36 hours. The second was maybe. The third was enough to make me pick up the phone.

The Insert Guide

I asked Dave to send a photo of the tool holder and the worn blade. That's when things got interesting.

The holder was an older Kennametal spade drill body, still in good shape. But the blade he had been using was a generic replacement from a third-party supplier. It worked, or at least it worked okay. But it wasn't the right geometry. The holes had been drifting for weeks. He thought the machine was the problem. It wasn't.

Here's something vendors won't tell you: most cutting tool problems trace back to the insert grade and chipbreaker, not the tool body. The body is the horse. The insert is the rider. If you put the wrong rider on, you can't blame the horse for pulling left.

We needed the right Kennametal blade. The quickest way to get there was the Kennametal insert guide on their website. It sounds simple, but it's surprising how often people skip it. There are more spade drills Kennametal offers than most people expect, and the guide is the fastest way through the options. They search by brand name and assume one insert works for every holder. It doesn't. The guide walks you through the geometry, grade, and coating based on material, setup, and operation.

For Dave, the application was a spade drill, not a lathe tool. So the insert guide had to match the holder series first. Then the material grade. H13 at around 40 HRC is a different animal than pre-hard 4140. Low-carbon steel lets you use a tough grade. Hard die steel needs a heat-resistant coating and a sharper edge—or at least a different edge prep.

If I remember correctly, the original blade number had more digits than I expected, and I won't try to recite it from memory. But the guide gave us a cross-reference, and the recommended grade was from the same family as the KC5010 coating we had used on a milling job. That gave us a starting point for speeds and feeds.

The Rush Order

I put together a quote with the holder, the blade, freight, and a rush fee as separate lines. The total was higher than Dave expected. I didn't hide it. 'Read the bottom line,' I said. 'That's the number. No add-ons later.'

Dave paused. 'Can you take off the rush fee?'

'No,' I said. 'But I can tell you exactly what it covers. Overnight freight, a call to the regional warehouse, and a 30-minute window to double-check the blade before it ships. If the wrong blade goes out, the drill is useless and you're still down on Tuesday.'

This is the part I want people to understand. The vendor who lists all the fees upfront—even if the total looks higher—usually costs less in the end. I've learned to ask 'what's NOT included' before 'what's the price.' Hidden fees may look like a bargain in the quote and become a problem later. Dave had been burned by that before, on a different line. A shop quoted a cheap price, then added setup fees and a materials surcharge after the job was already moving. He still remembers that invoice.

He approved the quote.

Then the waiting started. Even after choosing the rush option, I kept second-guessing. What if the blade was wrong? What if the coating didn't perform at the speed we calculated? The next 30 hours were stressful. Our on-time rate for rush orders that quarter was 95%. This one had to be in that 95%.

The Delivery

The drills arrived Tuesday morning. Dave's machinist loaded the first blade and made a test pass on a block. The hole came out straight. The finish was good. By midday, the tire mold segments were running. No rework. No crash. Exactly what we needed.

Dave called after lunch. 'It's cutting clean,' he said. 'No chatter. No squeal. That's the best sound I've heard in a week.'

I let out the breath I'd been holding. The job shipped on schedule.

What This Taught Me

Based on our internal data from 200+ rush jobs, I've learned a few things. This one reinforced all of them.

• Get the holder series and blade code before promising anything. A brand name is not a specification.
• Use the Kennametal insert guide or call their tech support before guessing. The right grade turns a risky order into a routine one.
• Put every cost on the quote—rush fee, freight, tax, handling. If a customer doesn't want to see it, they shouldn't ask for an emergency.

In my first year in this business, I made the classic rookie mistake. I assumed 'Kennametal spade drill' was a full description. It wasn't. I ordered the wrong blade, the customer lost a day, and I paid the freight both ways. That lesson stuck.

Most buyers focus on the price per insert and completely miss the cost of downtime. The blades might have cost Dave more than his old generic ones. The mold segments he was cutting were worth close to $15,000 each. A rework or a missed deadline would have cost him far more.

And the rush fee? It was $180. In the context of a $15,000 project, that's the price of a decent dinner, not a budget crisis. But if I hadn't put it on the quote in clear text, Dave would have felt surprised at the invoice, and we'd have lost the trust we built over three years.

The next time someone calls on Sunday with a 'Kennametal spade drills' order and no insert details, I know exactly what to do. Use the guide. Ask the questions. Show the numbers. And if the Henry vs Bengals game is still on in the background, keep the volume low—because the third question is always louder than the TV.