Skip to content
Free Local Pickup â—Ź Ship to Your Hometown Store
Pro & Contractor Accounts â—Ź Apply for Net Terms
100,000+ Products â—Ź Trusted American Hardware Brands
FAQ Shipping & Returns Order Lookup Contact Account
Diablo Metal Demon 1/2 in. X 5.9 in. L Metal Drill Bit 3-Flat Shank
Diablo Metal Demon 1/2 in. X 5.9 in. L Metal Drill Bit 3-Flat Shank
Diablo Metal Demon 1/2 in. X 5.9 in. L Metal Drill Bit 3-Flat Shank

Diablo Metal Demon 1/2 in. X 5.9 in. L Metal Drill Bit 3-Flat Shank

The Diablo Metal Demon 1/2 in. x 5.9 in. L Metal Drill Bit, 3-Flat Shank, is built for serious metalworking tasks where precision and durability matter. With a 1/2 inch diameter an…

Diablo MPN DMD12JB In Stock & Ready to Ship
Local Price Check i Local stores may price this as low as $21.99. Our online price is $23.99.
$23.99
Includes free shipping on orders over $75 · $8.99 standard below
Delivery in as little as 1–4 business days Order within — for same-day shipping
Cases of 6 · Order in multiples of 6

Sold by the Case · Save 15%

Take $21.60 off your case at checkout

Case of 6 · List Price $143.94
15% OFF with code at checkout $122.34
Use Code at Checkout

This product is packed and shipped from our distribution network as a complete case of 6. Apply casediscount at checkout to take 15% off your order.

Shop Local · Support Independent

Every order helps keep your local hardware store on the corner.

Why we built NHG
You might find it for less locally. Independent retailers often offer competitive pricing — some products are even cheaper in-store than online.
Real expert advice — not search results. Independent hardware staff know their inventory and the local conditions you're working in.
Keep the neighborhood working. Every dollar spent at an independent retailer returns roughly 3x more to your local economy than at a national chain.

About Product Overview

The Diablo Metal Demon 1/2 in. x 5.9 in. L Metal Drill Bit, 3-Flat Shank, is built for serious metalworking tasks where precision and durability matter. With a 1/2 inch diameter and an overall length of 5.9 inches, plus a 4-inch flute, this bit is designed to drill clean, accurate holes in metal workpieces while delivering extended reach for deeper applications.

The standout feature is the 3-flat shank, engineered to maximize torque transfer and minimize chuck slip. In real-world use, that means steadier starts, less wandering, and more consistent hole placement—even in tough materials or when drilling with higher drill speeds.

  • Diameter: 1/2 in
  • Overall length: 5.9 in
  • Flute length: 4 in
  • Shank type: 3-Flat Shank
  • Material: Metal
  • Brand / Sub-brand: Diablo / Metal Demon
  • Packaging: Bulk, 1 piece

Who should reach for this bit? Mechanics, fabricators, automotive enthusiasts, and serious DIYers who demand reliable metal drilling results. The 1/2 in size hits a common SAE/metric mix of fasteners and components, while the 4-inch flute aids in chip evacuation for deeper holes, reducing the risk of binding and heat buildup during extended drilling sessions.

Why choose Diablo Metal Demon over generic metal drill bits? It’s built specifically for metal with a geometry that emphasizes durability and stability. The 3-flat shank locks into compatible chucks with less wobble, so you maintain control from the first plunge to the final exit. This is not just a bit—it’s a dependable tool designed to improve workflow in workshops, garages, and fabrication shops.

Practical tips for best results: pair this bit with a drill press or a steady handheld drill, use appropriate cutting speed for metal, and apply light lubrication or cutting fluid to extend bit life and maintain clean hole edges. When you’re done, wipe away residue and store in a dry place to preserve the bit’s profile for future projects.

The Details Specifications

Brand Diablo
SKU 2037998
UPC 008925172833
Unit 0
Case Pack Quantity 6 per case
Retail Unit Quantity 6
Unit of Measure 0 0
Dimensions (L × W × H) 7 × 3 × 1
Weight 1 lbs
Cubic Feet 0.00141 ft³
Country of Origin GERMANY
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

Ask our counter. Or theirs.

Most hardware stores can do more than you think. If we can't help you, the folks down the street probably can — just ask at the counter.

What we offer
Free Local Pickup Ship to your hometown store
Pro & Gov Accounts Net terms · tax-exempt
Ships Nationwide From our distribution network
Independent Network Real hardware stores
$0.68 of every dollar spent at a local independent business stays in the community. At a national chain, it's about fifteen cents. Civic Economics, multi-city retail studies
Their Counter
Try local first · we'll wait

The stores we send you to are local and independently run — often for generations, the kind of place where someone behind the counter knows the regulars. We don't own them. We just think they deserve the foot traffic. They can put most of what we sell on their next truck. Ask there before you check out here.

Find a local store →
Mon–Fri 6–5 PST
Independent hardware retailer? Join the network →
About our directory. National Hardware Group is an independent retailer and directory. The local stores we list and link to are separately owned and operated — we have no ownership stake in any of them, and most pay us nothing to be included. That includes plenty of stores flying a co-op banner that people don't realize are locally owned and run, not operated by a corporation. Store owners can choose to upgrade their listing for an enhanced presence or pickup features, but the base directory is free, and inclusion is never a paid endorsement.

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare