Makita B-66640 2" Rotary Hammer Core Bit

4.5(2 ratings)Only 1 left

Good price

$99.89 is 19% below the $124.86 it normally sells for, and the lowest we've seen in 110 days.

Now: $99.89
Normally: $124.86
Lowest in 110 days: $99.89(Nov 13)
Highest: $141.54

Evidence: Strong110 days tracked5 price changeschecked 1h ago

Where today's price sits

Now $99.89Normal $124.86$141.54

View on amazon.com

Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.

Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)

Price history

Tracked since Jul 26 · 110 days · 5 price changes

Ahead of Black Friday 2026 (Nov 27), it is already 19% below its normal price of $124.86. Makita B-66640 2" Rotary Hammer Core Bit price history, checked Nov 14, 2026: current price $99.89, normal (typical) price $124.86, average $128.27 over 110 days, lowest $99.89 (Nov 13, 2026), highest $141.54 (Jul 29, 2026).

Price
Not checked for 3+ days
Normal $124.86
5% or more below normal

How often does it drop below normal?

In the 110 days we've tracked it, this is the first time it has stayed 5% or more below today's normal price for an hour or more. It has been below normal for less than a day so far.

A count of what happened, not a prediction.

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Get this as JSONThe same verdict and prices, from the TrackPin API.

GET/api/v1/product/B07T17D9MR

Request

curl https://trackpin.co/api/v1/product/B07T17D9MR \
  -H "x-api-key: $TRACKPIN_API_KEY"

const res = await fetch("https://trackpin.co/api/v1/product/B07T17D9MR", {
  headers: { "x-api-key": process.env.TRACKPIN_API_KEY },
});
const product = await res.json();

console.log(product.verdict.label, product.price.reference_cents);

import os, requests

r = requests.get(
    "https://trackpin.co/api/v1/product/B07T17D9MR",
    headers={"x-api-key": os.environ["TRACKPIN_API_KEY"]},
)
product = r.json()

print(product["verdict"]["label"], product["price"]["reference_cents"])

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key

Live responseAs of 01:34 UTC

{
  "asin": "B07T17D9MR",
  "title": "Makita B-66640 2\" Rotary Hammer Core Bit",
  "image": "https://m.media-amazon.com/images/I/71sDVajN9LL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "Home Improvement",
  "category_label": "Tools & Home Improvement",
  "in_stock": true,
  "price": {
    "current_cents": 9989,
    "reference_cents": 12486,
    "discount_pct": 20,
    "is_deal": true,
    "observed_at": 1794614986118,
    "changed_at": 1794596602819,
    "checked_at": 1794614986118,
    "source": "stored"
  },
  "verdict": {
    "label": "good",
    "text": "Good price",
    "pct_vs_normal": 20,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Good price. $99.89 is 19% below the $124.86 it normally sells for, and the lowest we've seen in 110 days."
  },
  "listing_claim": null,
  "stats": {
    "min_cents": 9989,
    "max_cents": 14154,
    "avg_cents": 12827,
    "history_days": 110,
    "price_levels": 32,
    "price_changes": 5,
    "distinct_prices": 5,
    "lowest_at": 1794596602819
  },
  "history": [
    {
      "price_cents": 12806,
      "from": 1788041959606,
      "to": 1788041959606
    },
    {
      "price_cents": 13480,
      "from": 1790897124684,
      "to": 1790897900765
    },
    {
      "price_cents": 12806,
      "from": 1790990613770,
      "to": 1793884373934
    },
    {
      "price_cents": 12486,
      "from": 1793900451671,
      "to": 1794590104726
    },
    {
      "price_cents": 9989,
      "from": 1794596602819,
      "to": 1794614986118
    }
  ],
  "last_seen": 1794614986118
}
// … 27 more steps in the full response

Normal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.

Makita B-66640 2" Rotary Hammer Core Bit

Price history

How often does it drop below normal?

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