Diamond Drill Mafia

A brotherhood like no other!

We’re not selling fashion—we’re outfitting the brotherhood that chews through rock and steel.

Diamond Drill Mafia is built for drillers with grease on their hands, and pride in their craft.

Heavy‑duty shirts, hoodies, and gear tough enough for the rig, and made to match the grind.

No fluff. No nonsense. Just the swag of drillers who don’t quit.

The one and only "Flex Fit" Twill Cap
$44.00
Available in two sizes with an elastic stretch band, this hat is a sure winner in comfort! It has an athletic shape with a curved visor.

• 63% polyester, 34% cotton, 3% spandex twill
• Structured, 6-panel, mid-profile (with a low-profile embroidery area)
• 6 embroidered eyelets
• Stretch band
• Silver undervisor
• Head circumference: 22”–23⅞” (55.9 cm–60.6 cm)
• Blank product sourced from Vietnam or Bangladesh

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Unisex Hoodie
from $90.00
Who knew that the softest hoodie you'll ever own comes with such a cool design. You won't regret buying this classic streetwear piece of apparel with a convenient pouch pocket and warm hood for chilly evenings.

• 100% cotton face
• 65% ring-spun cotton, 35% polyester
• Front pouch pocket
• Self-fabric patch on the back
• Matching flat drawstrings
• 3-panel hood
• Blank product sourced from Pakistan

Disclaimer: This hoodie runs small. For the perfect fit, we recommend ordering one size larger than your usual size.

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Stainless steel water bottle with a straw lid
$34.50
Stay hydrated all day with this 32 oz (950 ml) water bottle. It’s ideal for workouts or busy days, with a wide-mouth foldable straw for spill-free sipping and a rotating handle for easy carrying.

• Double-walled stainless steel with vacuum insulation
• Plastic lid and wide-mouth foldable straw
• 32 oz. (950 ml)
• Height: 9.92″ (25.2 cm)
• Diameter: 3.54″ (9 cm)
• Glossy finish
• Rotating handle
• Comes with an anti-slip patch
• Blank product sourced from China

Disclaimer: Not dishwasher or microwave safe. Hand-wash only.
Distressed Dad Hat
$35.00
Expand your headwear collection with this fashionable dad hat. With a slightly distressed brim and crown fabric, it’ll add just the right amount of edge to your look. For a quick and easy outfit pair it with slacks, your favorite jeans, and a sports tee.

• 100% pre-shrunk cotton twill
• Soft crown
• 6 sewn eyelets
• 6 stitched rows on the brim
• 6-panel unstructured cap with a low profile
• Seamed front panel without buckram
• Adjustable hook and loop closure
• Blank product sourced from China

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Unisex classic tee
$45.00
The 100% cotton unisex classic tee will help you land a more structured look. It sits nicely, maintains sharp lines around the edges, and goes perfectly with layered streetwear outfits. Plus, it's extra trendy now!

• 100% cotton
• Sport Grey is 90% cotton, 10% polyester
• Ash Grey is 99% cotton, 1% polyester
• Heather colors are 50% cotton, 50% polyester
• Fabric weight: 5.0–5.3 oz/yd² (170-180 g/m²)
• Open-end yarn
• Tubular fabric
• Taped neck and shoulders
• Double seam at sleeves and bottom hem
• Blank product sourced from Honduras, Nicaragua, Haiti, Dominican Republic, Bangladesh, Mexico

Disclaimers: 
• Due to the fabric properties, the White color variant may appear off-white rather than bright white.
• Dark color speckles throughout the fabric are expected for the color Natural.

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Travel mug with a handle
from $36.50
Sip in style and comfort with an elevated travel mug. With its sleek and durable design, you’ll love taking this mug wherever you go. It fits into most car cup holders and has a spill-proof plastic lid. Commute to work or go on new adventures—this travel mug will keep your beverage safe and at just the right temperature.

• Made with stainless steel
• Lead and BPA-free materials used
• Hand-wash only
• Blank product sourced from China

25 oz (739 ml) size:

• Height: 7.9″ (20 cm)
• Upper diameter: 3.3″ (8.4 cm)
• Bottom diameter: 2.7″ (7 cm)
• Comes with a plastic press-in lid

40 oz (1183 ml) size:

• Height: 10.4″ (26.5 cm)
• Upper diameter: 3.9″ (9.9 cm)
• Bottom diameter: 2.9″ (7.4 cm)
• Comes with a plastic straw and screw-on lid

Caution! To prevent steam pressure buildup, always open the lid before placing it on a hot drink.

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Rocks glass
$20.50
Keep it classy with this elegant rocks glass. Ideal for whiskey and cocktail lovers, it features a classic style and is made from sturdy, quality glass.

• Glass material
• Volume: 10.5 oz. (311 ml)
• Height: 3.4″ (8.64 cm)
• Diameter: 3.2″ (8.13 cm)
• Blank product sourced from the United States

Disclaimer: Not dishwasher or microwave safe. Hand-wash only.
Unisex heavy blend zip hoodie
$90.00
Designed with style and comfort in mind, this hoodie will quickly become your new favorite. It’s made from soft fleece inside and outside, with a sturdy metal zipper, convenient front pockets, and a hood with color-matched drawstrings.

• 50% cotton, 50% polyester
• Fabric weight: 8 oz/yd² (271 g/m²)
• Yarn diameter: 20 singles
• Soft fleece fabric inside and outside
• Air-jet spun yarn for reduced piling
• Regular fit
• Metal zipper
• Front pouch pockets
• Unlined hood with color-matched drawcord
• Double-needle stitching at shoulders, armholes, neck, waistband, and cuffs
• Safety Green: Compliant with ANSI/ISEA 107
• Blank products sourced from Honduras and El Salvador

Disclaimer: Due to the fabric properties, the White color variant may appear off-white rather than bright white.

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Men's Tank Top
$40.00
A classic, staple tank top. A timeless classic intended for anyone looking for great quality and softness.

• 100% combed and ringspun cotton
• Tri-blends are 50% polyester/25% combed/25% ringspun cotton/rayon
• Fabric weight: 4.2 oz/yd² (142.40 g/m²), triblends: 3.8 oz/yd² (90.07 g/m²)
• 30 singles thread weight
• Side-seamed
• Blank product sourced from Nicaragua, Honduras, or the US

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Women’s relaxed hoodie
from $86.00
A relaxed, easygoing hoodie made for laid-back days. Crafted from a heavyweight cotton-blend fleece, it feels soft yet durable, perfect for layering through the seasons. The minimal pullover design pairs effortlessly with jeans, joggers, or shorts.

• 80% cotton, 20% recycled polyester
• Fabric weight: 9.4 oz./yd² (319 g/m²)
• Pre-shrunk fabric to minimize shrinkage
• Relaxed fit
• Self-fabric hood with no drawcords
• Drop shoulders
• Blank product sourced from Vietnam

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Unisex classic tee
$45.00
The 100% cotton unisex classic tee will help you land a more structured look. It sits nicely, maintains sharp lines around the edges, and goes perfectly with layered streetwear outfits. Plus, it's extra trendy now!

• 100% cotton
• Sport Grey is 90% cotton, 10% polyester
• Ash Grey is 99% cotton, 1% polyester
• Heather colors are 50% cotton, 50% polyester
• Fabric weight: 5.0–5.3 oz/yd² (170-180 g/m²)
• Open-end yarn
• Tubular fabric
• Taped neck and shoulders
• Double seam at sleeves and bottom hem
• Blank product sourced from Honduras, Nicaragua, Haiti, Dominican Republic, Bangladesh, Mexico

Disclaimers: 
• Due to the fabric properties, the White color variant may appear off-white rather than bright white.
• Dark color speckles throughout the fabric are expected for the color Natural.

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Distressed Dad Hat
$35.00
Expand your headwear collection with this fashionable dad hat. With a slightly distressed brim and crown fabric, it’ll add just the right amount of edge to your look. For a quick and easy outfit pair it with slacks, your favorite jeans, and a sports tee.

• 100% pre-shrunk cotton twill
• Soft crown
• 6 sewn eyelets
• 6 stitched rows on the brim
• 6-panel unstructured cap with a low profile
• Seamed front panel without buckram
• Adjustable hook and loop closure
• Blank product sourced from China

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

USE PROMO CODE “MAFIA” FOR FREE SHIPPING!

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USE PROMO CODE “MAFIA” FOR FREE SHIPPING! *

What Our Crew Says ⭐️⭐️⭐️⭐️⭐️

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What Our Crew Says ⭐️⭐️⭐️⭐️⭐️ *

“Best hoodie I’ve ever owned, are you even a driller if you don't own one?

Mean Dean

“Finally, a brand that’s Making Drilling Great Again!”

Money Mike

“I wear my Mafia gear with pride. Nothing else comes close.”

-Diamond Dave

➡️ [See More Reviews]