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Choosing the best precision espresso basket starts with the hole pattern, because these five baskets drill from 556 to 745 holes and one gives a hole diameter instead of a count. MHW-3BOMBER drills 745 laser holes, MS Nanoquartz 715, IMS Big Bang 585 toward the center, Velvet Flow 556 slow flow holes, and Normcore gives 0.28mm holes in an 18g basket kit. After the pattern, compare capacity, machine fit and wall design. Every detail here comes from the Amazon product page and manufacturer information for each basket. Nothing was checked with real equipment, so treat the figures as page information rather than hands on results. Our editorial policy page explains how products are chosen for these guides.

Top 5 Picks at a Glance

Best 585 Hole Center Pattern PickIMS Big Bang Precision Filter Basket for 58mm portafilters, 18-20g double espresso (h23.5)

IMS Big Bang Precision Filter Basket for 58mm portafilters, 18-20g double espresso (h23.5)

  • Holes cluster toward the middle
  • Uniform extraction per the page
  • Fits most E61 portafilters
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Best 715 Hole Nanoquartz PickMS Nanoquartz Precision Basket with largest filtration area of 715 holes 20 g for E61 58mm group head

MS Nanoquartz Precision Basket with largest filtration area of 715 holes 20 g for E61 58mm group head

  • Filtration area of 715 holes
  • Coating over the steel
  • For 58.5mm tampers
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Best Basket Kit PickNormcore 58mm Precision High Extraction Basket, 18 g, includes 58mm Paper Filters (200pcs) and 58.5mm Puck Screen, 0.8mm thickness, 0.28mm hole diameter

Normcore 58mm Precision High Extraction Basket, 18 g, includes 58mm Paper Filters (200pcs) and 58.5mm Puck Screen, 0.8mm thickness, 0.28mm hole diameter

  • Basket, screen and papers together
  • 200 filter papers included
  • Ideal for E61 group heads
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How We Score

We score each pick out of 10 on four criteria, using only what its Amazon product page states. A clearly stated, strong feature earns 8 to 10, a partial one 6 to 7, a feature the page does not mention 5, and one the page shows as absent or contrary 2 to 4. The overall score is the weighted total.
Criterion Weight What we look at
Hole Pattern 30% Covers hole count, hole diameter and pattern layout named
Fit and Capacity 30% Covers dose capacity and the machine fit list given
Build and Material 20% Covers steel type, thickness, coating and wall design named
Extras and Notes 20% Covers kit extras and usage notes the page gives

How These Precision Baskets Compare

Product Best For Type Key Spec Score
IMS Big Bang Precision Filter Basket for 58mm portafilters, 18-20g double espresso (h23.5) IMS Big Bang Best 585 Hole Center Pattern Pick Precision Filter Basket 585 holes toward the center, 18-20g capacity, height H23.5, 70mm border, made in Italy by IMS 8.0 View
MS Nanoquartz Precision Basket with largest filtration area of 715 holes 20 g for E61 58mm group head MS Nanoquartz Best 715 Hole Nanoquartz Pick Nanoquartz Coated Precision Basket 715 holes at 0.30 mm, perforated area 49 mm, Nanoquartz coating, fits 18 to 21 grams, 20 g size 7.9 View
Normcore 58mm Precision High Extraction Basket, 18 g, includes 58mm Paper Filters (200pcs) and 58.5mm Puck Screen, 0.8mm thickness, 0.28mm hole diameter Normcore Best Basket Kit Pick Precision Basket Kit Basket kit with 18g basket, 58.5mm puck screen and 200 paper filters, holes 0.28mm, steel 0.8mm thick 7.7 View
MHW-3BOMBER 58mm Espresso Filter Basket, 18g Double-layer Stainless Steel High Precision, fits most 58mm portafilter, Ridged, FB5628 MHW-3BOMBER Best 745 Laser Hole Pick Double Layer Filter Basket 745 laser-drilled holes, dual layer build, SUS304 steel, bottom 0.8mm, 58.5mm ridged basket, 18g 7.6 View
Velvet Flow 58mm Espresso Filter Basket 18-21g, Slow-Flow Ridgeless for Dark Roast, Rich Crema, Stainless Steel, for La Marzocco, Rancilio Silvia, Gaggia Classic, E61 Velvet Flow Best Slow Flow Ridgeless Pick Slow Flow Filter Basket 556 slow-flow holes, 18-21g capacity, ridgeless straight wall, AISI304 steel, built for dark roast 7.3 View

1. IMS Big Bang Precision Filter Basket for 58mm portafilters, 18-20g double espresso (h23.5)

Best 585 Hole Center Pattern Pick 8.0/10IMS Big Bang Precision Filter Basket for 58mm portafilters, 18-20g double espresso (h23.5)
Pros
  • 585 holes with center spacing
  • Page notes sweetness highlight
  • Long machine fit list
  • Border reads 70mm
Cons
  • No hole diameter is named
  • No thickness figure is named
  • No coating is named
Brand IMS
Model B702TFH23.5BB
Material Stainless Steel
Basket Height H23.5
IMS Big Bang distributes its 585 holes towards the center of the basket, with more holes in the center and less distance between them. The basket holds 18-20g as a double espresso basket at height H23.5, with a 70mm border, for 58mm portafilters. The page notes the basket is made in Italy by IMS and calls it the latest innovation from IMS. The page says Big Bang filters highlight the sweetness of coffee, with uniform extraction that avoids channeling. The fit list covers most E61 group head portafilters and names Gaggia, Astoria, Casadio, Conti, Elektra, Fracino, Magister, La Marzocco, Rancilio, Slayer, Synesso, Victoria Arduino, Ascaso, Bezzera, Faema and ECM among others. No hole diameter or steel thickness figure appears on its page. Score: hole pattern 9, fit and capacity 9, build and material 7, extras and notes 6.

Who the IMS Big Bang fits best

Choose it if your portafilter is 58mm and you want 585 holes weighted toward the center at 18-20g.

Who should skip the IMS Big Bang

Skip it if you need a hole diameter or thickness figure on the page.

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2. MS Nanoquartz Precision Basket with largest filtration area of 715 holes 20 g for E61 58mm group head

Best 715 Hole Nanoquartz Pick 7.9/10MS Nanoquartz Precision Basket with largest filtration area of 715 holes 20 g for E61 58mm group head
Pros
  • Hole diameter given as 0.30 mm
  • Perforated area reads 49 mm
  • Page notes finer grind use
  • E61 fit list is long
Cons
  • No kit extras are included
  • Capacity varies with roast and grind
  • No border diameter is named
Brand MS
Model B702TFH26NT
Material Stainless Steel
Item Weight 20 g
MS Nanoquartz coats its precision basket in Nanoquartz, with a filtration area of 715 holes at a hole diameter of 0.30 mm across a perforated area of 49 mm. The basket size is 20 g, and the fit range reads 18 to 21 grams depending on roast and grind, for 58mm portafilters and 58.5mm tampers. The basket weight reads 20 g in its specs. The page says the basket comes from a special IMS Filtri project developed to highlight taste in light to medium roasts, and that its 715 holes enable extraction of a much finer grind. The fit list covers most E61 group head portafilters, naming Gaggia, Astoria, Elektra, La Marzocco, Rancilio, Slayer, Synesso, Victoria Arduino, Bezzera, ECM and Faema among others. Score: hole pattern 9, fit and capacity 8, build and material 8, extras and notes 6.

Who the MS Nanoquartz fits best

Choose it if you grind fine and want a Nanoquartz coated basket with 715 holes for an E61 group head.

Who should skip the MS Nanoquartz

Skip it if you want kit extras or a fixed single dose size.

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3. Normcore 58mm Precision High Extraction Basket, 18 g, includes 58mm Paper Filters (200pcs) and 58.5mm Puck Screen, 0.8mm thickness, 0.28mm hole diameter

Best Basket Kit Pick 7.7/10Normcore 58mm Precision High Extraction Basket, 18 g, includes 58mm Paper Filters (200pcs) and 58.5mm Puck Screen, 0.8mm thickness, 0.28mm hole diameter
Pros
  • Puck screen adds a second filter
  • Even water flow per the page
  • Works with La Marzocco, Rocket
  • Stable extraction per the page
Cons
  • Capacity stops at 18g
  • No hole count is named
  • No coating is named
Brand Normcore
Model 58mm 18g
Material Stainless Steel
Hole Diameter 0.28mm
Normcore sells its precision basket as a kit, 1 basket at 18g, 1 stainless 58.5mm puck screen at 0.8mm, and 200 filter papers at 58mm. The basket steel is 0.8mm thick with holes of 0.28mm diameter, and the page says the holes reduce resistance and suit different grind sizes, with even water flow and stable extraction. The basket itself fits 58mm machines. The fit note calls the basket ideal for E61 group heads and most 58mm commercial machines, naming La Marzocco, Rocket, Faema, Sanremo, ECM, Lelit and Slayer among others. No hole count, coating or wall design is named for the basket itself. The puck screen in the kit is 58.5mm across, and the paper filters count 200 pieces at 58mm. Score: hole pattern 7, fit and capacity 8, build and material 7, extras and notes 9.

Who the Normcore fits best

Choose it if you want an 18g basket with a puck screen and 200 paper filters in one kit.

Who should skip the Normcore

Skip it if you need a dose above 18g or a stated hole count.

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4. MHW-3BOMBER 58mm Espresso Filter Basket, 18g Double-layer Stainless Steel High Precision, fits most 58mm portafilter, Ridged, FB5628

Best 745 Laser Hole Pick 7.6/10MHW-3BOMBER 58mm Espresso Filter Basket, 18g Double-layer Stainless Steel High Precision, fits most 58mm portafilter, Ridged, FB5628
Pros
  • Laser-drilled perforations
  • Bottom reinforced to 0.8mm
  • Fits Breville BES980XL, 920XL
  • After-sales service named
Cons
  • Casabrews 58mm groupheads excluded
  • No kit extras are included
  • No coating is named
Brand MHW-3BOMBER
Model FB56
Material SUS304 Stainless Steel
Capacity 0.63 oz (18 g)
MHW-3BOMBER builds this 18g basket in two layers, an inner filter that blocks ultra-fine particles and an outer layer that supports the inner mesh, with 745 laser-drilled perforations. The steel is SUS304, the bottom is reinforced to 0.8mm, and the design is straight-sided with a flat bottom and a ridged wall at 58.5mm. The basket fits a 2.3 in (58.5 mm) portafilter, per the data. Capacity reads 0.63 oz (18 g), with a recommended coffee dose of 0.6-0.7 oz (17-19 g). The fit list covers most 58mm portafilters, naming Breville BES980XL, 920XL and 900XL, Gaggia Classic, Pro and Evo, Bezzera and E61 machines. The page excludes certain tight or shallow 58mm groupheads including Casabrews 58mm, and after-sales service is named. Score: hole pattern 9, fit and capacity 7, build and material 8, extras and notes 6.

Who the MHW-3BOMBER fits best

Choose it if your portafilter is 58mm and you want a dual layer basket with 745 laser-drilled holes.

Who should skip the MHW-3BOMBER

Skip it if your grouphead is a tight or shallow Casabrews 58mm design.

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5. Velvet Flow 58mm Espresso Filter Basket 18-21g, Slow-Flow Ridgeless for Dark Roast, Rich Crema, Stainless Steel, for La Marzocco, Rancilio Silvia, Gaggia Classic, E61

Best Slow Flow Ridgeless Pick 7.3/10Velvet Flow 58mm Espresso Filter Basket 18-21g, Slow-Flow Ridgeless for Dark Roast, Rich Crema, Stainless Steel, for La Marzocco, Rancilio Silvia, Gaggia Classic, E61
Pros
  • Breville Dual Boiler, Oracle fit
  • Bottomless friendly per the page
  • Long E61 fit list
  • Clean puck knock out
Cons
  • Breville fit stops at two models
  • Page calls for a finer grind
  • Dial in takes 2-3 shots per page
Brand Velvet Flow
Model FB-S053B
Material AISI304 Stainless Steel
Capacity 18-21g
Velvet Flow builds this basket for dark roast, with a 556 slow-flow hole pattern and a slow, even flow, per the page. The wall is a true 58mm standard, straight and non-tapered, and the basket is ridgeless in AISI304 stainless steel. Capacity reads 18-21g, and the page presents the basket as an upgrade over a stock basket and as bottomless friendly. The page gives a pull of 19g in to 38g out in 30 seconds, says a thin even puck bed rewards a finer grind, and allows 2-3 shots to dial in. Breville fit is limited to the Dual Boiler and Oracle models, while E61 group heads and 58mm portafilters from La Marzocco, Rocket, Lelit, Profitec, ECM, Slayer, Decent, Gaggia Classic and Rancilio Silvia are named. Score: hole pattern 7, fit and capacity 8, build and material 7, extras and notes 7.

Who the Velvet Flow fits best

Choose it if you brew dark roast and want a ridgeless slow flow basket at 18-21g for an E61 machine.

Who should skip the Velvet Flow

Skip it if your Breville is not a Dual Boiler or Oracle model.

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How to Choose a Precision Basket by Holes and Fit

Hole counts and diameters

Counts read 745 laser-drilled holes for MHW-3BOMBER, 715 for MS Nanoquartz, 585 for IMS Big Bang and 556 slow flow holes for Velvet Flow. Normcore gives a hole diameter of 0.28mm without a count, and MS Nanoquartz gives 0.30 mm across a 49 mm perforated area. IMS Big Bang places more holes toward the center with less distance between them.

Capacity ranges

Normcore and MHW-3BOMBER hold 18g, with MHW-3BOMBER recommending 17-19 g of coffee. IMS Big Bang holds 18-20g, and MS Nanoquartz and Velvet Flow hold 18-21g, the MS range depending on roast and grind.

Machine fit and exclusions

E61 group heads appear in every fit list here. MHW-3BOMBER names Breville BES980XL, 920XL and 900XL but excludes tight or shallow groupheads including Casabrews 58mm. Velvet Flow limits Breville fit to the Dual Boiler and Oracle. Normcore names most 58mm commercial machines, including La Marzocco, Rocket and Sanremo.

Walls, layers and coatings

MHW-3BOMBER is ridged with straight sides and a flat bottom in a dual layer build. Velvet Flow is ridgeless with a straight, non-tapered wall. MS Nanoquartz adds a Nanoquartz coating over its steel. Steel thickness reads 0.8mm for the Normcore basket and 0.8mm at the MHW-3BOMBER bottom.

Kits and page notes

Normcore is the kit entry, with a 58.5mm puck screen and 200 paper filters beside its basket. Page notes differ by basket, IMS Big Bang on sweetness, MS Nanoquartz on light to medium roasts, and Velvet Flow on dark roast with an example pull of 19g in to 38g out in about 30 seconds, all as the pages state them.

Frequently Asked Questions

What is the best precision espresso basket?The IMS Big Bang Precision Filter Basket for 58mm portafilters, 18-20g double espresso (h23.5) is the best precision espresso basket for most shoppers in this group, because it distributes 585 holes toward the center at 18-20g and fits most E61 group head portafilters.
Which baskets fit Breville machines?MHW-3BOMBER and Velvet Flow name Breville fits. MHW-3BOMBER fits the Breville BES980XL, 920XL and 900XL, and Velvet Flow fits only the Breville 58mm Dual Boiler and Oracle models.
Which basket comes as a kit?Normcore does. Its kit holds the 18g basket, a stainless 58.5mm puck screen at 0.8mm, and 200 paper filters at 58mm.
What hole counts do these baskets have?MHW-3BOMBER has 745 holes, MS Nanoquartz 715, IMS Big Bang 585 and Velvet Flow 556. Normcore gives a hole diameter of 0.28mm and no hole count.
Which baskets are ridged or ridgeless?Velvet Flow is ridgeless and MHW-3BOMBER is ridged. IMS Big Bang, MS Nanoquartz and Normcore name no ridge design on their pages.

Final Verdict

The best precision espresso basket pick for most shoppers is the IMS Big Bang Precision Filter Basket for 58mm portafilters, 18-20g double espresso (h23.5), because its 585 holes sit toward the center of an 18-20g basket made in Italy by IMS. MS Nanoquartz is the alternative when 715 holes and a Nanoquartz coating fit a finer grind, and Normcore suits buyers who want the basket kit with a puck screen and paper filters. Check the current price and size on Amazon before you order.
Looking for something else? Browse our other coffee guides for espresso portafilters, puck screens and tamping stations.

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