Featured guide
Angle Grinder Blades and Saw Wheels: What Fits Which Tool
Which wheel or blade fits your angle grinder, chop saw, tile saw or walk-behind saw: diameter, arbor and RPM by tool, the 60,000 rule, and the wheels we stock.
GUIDES·ELECTRICALAngle Grinder Blades and Saw Wheels: What Fits Which ToolWhich wheel or blade fits your angle grinder, chop saw, tile saw or walk-behind saw: diameter, arbor and RPM by tool, the 60,000 rule, and the wheels we stock.4-1/2" x 3/64" x 7/...4-1/2" x 3/64" x 7/...4-1/2" x 1/8" x 7/8...
Guides
Electrical
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Nov 2, 2026
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GUIDES·ELECTRICALSilver and Deming Drill Bits: Big Holes From a 1/2 in. ChuckWhich Silver and Deming bit drills the hole for your bolt or tap, HSS or cobalt, how fast to run it, and every size we stock with prices.Broca Silver & ...Vástago ThunderBit®...Tapón ThunderTap NC...
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GUIDES·GLASS & SHOWERDiamond End Mill Guide: Enlarge and Finish Holes in TileA diamond end mill makes an existing hole in porcelain, granite or quartz bigger or reshapes it; a diamond countersink finishes the edge so screws can't crack it.Fresa de diamante d...Fresa de diamante d...Fresa de diamante d...
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11 min
Oct 28, 2026
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GUIDES·ELECTRICALImpact Socket Adapters: Sockets on an Impact DriverTurn an impact driver into a socket driver. Which drive size, which length, which socket for Tek screws, threaded rod and anchors, with a live stack builder.Extensión de dado d...Extensión de dado d...Extensión de dado d...
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GUIDES·ELECTRICALOscillating Tool Blades: Metal vs Wood, Universal FitWhich oscillating blade to grab for nails, EMT, PVC, drywall or grout, how deep the 1-3/8 and 1-3/4 in. blades really plunge, and which multi-tools they fit.Oscillating Blades ...Oscillating Blades ...Oscillating Blades ...
Guides
Electrical
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8 min
Oct 27, 2026
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GUIDES·ELECTRICALMulti Purpose Drill Bits: What They Really DrillWhat a multi purpose drill bit really drills, what it can't, and which size and length reaches through your wall.1/8" x 2-1/2" Multi...5/32" x 3" Multi-Pu...3/16" x 3-1/2" Mult...
Guides
Electrical
15
8 min
Oct 27, 2026
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GUIDES·ELECTRICALEnd Mill for Aluminum: Square vs Corner Radius, Flute CountSquare or corner radius, 2 or 3 flutes, and which length: how to pick an end mill for aluminum, with every Titan size we stock, priced per piece.Fresa de extremo de...Fresa de extremo de...Fresa de extremo de...
Guides
Electrical
7
13 min
Oct 27, 2026
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GUIDES·GLASS & SHOWERDrill Bit for Porcelain Tile: ITM V-Groove vs Relton Groo-VWhich V-groove tile bit to buy for anchor holes through porcelain: ITM V-Groove vs Relton Groo-V, rotation vs hammer, sizes by fastener and real cost per hole.Brocas para baldosa...Brocas para baldosa...Brocas para baldosa...
Guides
Glass & Shower
17
10 min
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GUIDES·ELECTRICALDiamond Blades: Segmented, Turbo, Continuous Rim, Which SawSegmented, turbo or continuous rim: the diamond blade for concrete, tile and stone, and the size that fits your grinder, tile saw or cut-off saw.10" V-Groove Diamon...4-1/2" V-Groove Dia...4-1/2" Segmented Di...
Guides
Electrical
23
11 min
Oct 22, 2026
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GUIDES·ELECTRICALSanding Discs for Metal: Which Grain, Backing and PadWhich sanding disc to buy for metal: fiber vs hook and loop vs quick-change, ceramic vs zirconia, and the backing pad and RPM each needs, with SKUs and prices per disc.4-1/2" x 7/8" COOLC...4-1/2" x 7/8" TOPCU...4-1/2" x 7/8" COOLC...
Guides
Electrical
11
7 min
Oct 22, 2026
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GUIDES·FOUNDATION & BASEMENT REPAIRKnotted vs Crimped Wire Cup Brushes for Angle GrindersKnotted or crimped, carbon or stainless: how to pick a wire cup brush for your angle grinder, and which sizes are safe on a 4-1/2 in. grinder.3" x 5/8"-11 Knot-T...3" x 5/8"-11 Knot-T...3" x 5/8"-11 Knot-T...
Guides
Foundation & Basement Repair
12
8 min
Oct 22, 2026
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GUIDES·ELECTRICALCut Off Wheels: .045 vs 1/16 vs 1/8, and Stainless-SafePick the tool first, then the metal. Thickness by grinder and saw size, Type 1 vs Type 27, and the Walter wheels that won't rust stainless, priced per wheel.4-1/2" x 3/64" x 7/...4-1/2" x 3/64" x 7/...4-1/2" x 3/64" x 7/...
Guides
Electrical
18
10 min
Oct 21, 2026
0
GUIDES·FOUNDATION & BASEMENT REPAIRFlap Disc vs Grinding Wheel on a WeldWhen to grind a weld with a grinding wheel, when a flap disc alone is enough, and which grit and type to buy, with SKUs and prices per disc.6" x 7/8" ALLSTEEL ...4-1/2" x 7/8" ALLST...4-1/2" x 7/8" ALLST...
Guides
Foundation & Basement Repair
9
9 min
Oct 21, 2026
0
GUIDES·FOUNDATION & BASEMENT REPAIRWhich Grinding Wheel for Angle Grinder WorkWhich grinding wheel to use on your angle grinder for welds, pipe, stainless, flat work and concrete, with the exact Walter and ITM wheels we stock and the price per wheel.4-1/2" x 1/4" x 7/8...4-1/2" x 1/8" x 7/8...4-1/2" x 1/8" x 7/8...
Guides
Foundation & Basement Repair
11
10 min
Oct 21, 2026
0
GUIDES·FOUNDATION & BASEMENT REPAIRDrill Bits for Hardened Steel: Carbide-Tipped vs CobaltCarbide-tipped or cobalt? A file test tells you which bit drills your steel. Our picks by SKU, with price per bit and minimums.1/4" x 4" Right Han...1/4" x 4" Left Hand...5-Piece Right Hand ...
Guides
Foundation & Basement Repair
7
7 min
Oct 21, 2026
0
GUIDES·ELECTRICALMetal-Cutting Circular Saw Blades: Teeth, Dry-Cut, What FitsWhich metal cutting circular saw blade fits your saw: teeth for steel, stainless and aluminum, the RPM rule, and the USA-made ITM blades we stock, with prices.7-1/4" x 48T Metal-...7-1/4" x 56T Metal-...7-1/4" x 56T Metal-...
Guides
Electrical
11
7 min
Oct 21, 2026
0
GUIDES·ELECTRICALSDS Max Extension and Adapter Guide: What Breaks BitsAn SDS-Max extension only works with the X-Tendr adapter, and a one-piece long bit is cheaper up to 47 in. Plus the SDS-Plus adapter rule and what breaks bits.Eje SDS-Max de 30"Adaptador X-TendrEje SDS-Max de 12-1/2"
Guides
Electrical
18
9 min
Oct 20, 2026
0
GUIDES·METAL FABRICATIONCounterbore vs Countersink, and When You Need EachTwo holes for two screw heads. Counterbores sink socket head cap screws flush in a flat-bottomed pocket; 82° countersinks seat flat-head screws in a cone and clean up hole edges. Prices p...Avellanador para to...Avellanador para to...Avellanador para to...
Guides
Metal Fabrication
12
11 min
Oct 19, 2026
0
GUIDES·ELECTRICALSDS Plus vs SDS Max: Which Shank for the JobTwo rotary hammer shanks, one decision. SDS-Plus for holes to 1 in. and light chipping, SDS-Max from 1 in. up, for coring and breaking, with prices per bit and the adapter rules.1/2" SDS-Plus Stop ...1/2" x 6-1/4" SDS-Plus1/2" x 6-1/4" SDS-P...
Guides
Electrical
18
21 min
Oct 19, 2026
0
GUIDES·ELECTRICALPortable Band Saw Blade Sizes: Which Blade Fits Your SawWhich length fits your Milwaukee, DeWalt, Makita or Bosch band saw, which TPI to run, and the blade we stock for each.44-7/8" x 1/2" 10/1...44-7/8" x 1/2" 14/1...44-7/8" x 1/2" 18 T...
Guides
Electrical
10
10 min
Oct 15, 2026
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GUIDES·FOUNDATION & BASEMENT REPAIRFoundation Repair Tools: What Crews Need, Step by StepFoundation repair demand is up and crews are short-handed. Here is the cutting and drilling tooling for each step of a foundation job, with SKUs and prices.14" Segmented Diamo...Taladro SDS-Max con...2-3/4" x 12" 1-Pc S...
Guides
Foundation & Basement Repair
5
9 min
Oct 15, 2026
0
GUIDES·FOUNDATION & BASEMENT REPAIRRebar Drill Bits: How to Drill Through Rebar in Concrete FootingsWhich rebar drill bit to use when a hole hits steel in a footing or foundation wall: 4-cutter bits, rotation-only rebar cutters and hammer-mode rebar punchers, with every size and price.5/8" x 12" SDS-Plus...1/2" x 6-1/4" SDS-P...5/8" x 12" SDS-Plus...
Guides
Foundation & Basement Repair
8
9 min
Oct 14, 2026
0
GUIDES·METAL FABRICATIONCarbide Burrs for Aluminum: Why Double Cut Clogs and What to UseWhy a double cut burr clogs on aluminum, which aluminum cut shape to buy for each job, set vs singles math, and the speeds that keep the flutes clear.Walter Carbide Burr...Drillco Carbide Bur...1/2" x 1" SA-5 Cyli...
Guides
Metal Fabrication
8
9 min
Oct 12, 2026
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GUIDES·TILE & STONECalifornia's Quartz Countertop Ban: What It Is, What It Isn't, and What Happens NextCalifornia is close to banning the cutting of quartz countertops. What the draft rule covers, the dates, the silicosis numbers behind it, and what to do if you're remodeling.4-1/2" V-Groove Dia...10" V-Groove Diamon...4-1/2" x 5/8"-11 Do...
Guides
Tile & Stone
3
9 min
Oct 10, 2026
0
GUIDES·ELECTRICALHow to Choose Drill Bits for Metal (and Make Them Last)How to choose drill bits for metal: HSS, cobalt or carbide, 118° vs 135° points, the right length for the hole, drilling speeds and price per bit.1/4" Heavy-Duty Thu...Punta ThunderBit® d...1/4" 135° TiN HD Th...
Guides
Electrical
6
11 min
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CLASSROOMA Navy Sailor and a Climate Architect: Our 2025 WinnersOut of 632 applicants, two won: an architect researching hemp-based building for hurricane country, and a Navy sailor studying to run construction projects. Meet them, and apply for the 2...
Classroom
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CLASSROOMWhy a Future in Civil Engineering is More Exciting Than EverThinking about a civil engineering career? See what civil engineers earn, where the jobs are headed, the two paths in, and a scholarship that can help.Broca con núcleo de...
Classroom
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CLASSROOMBuild the Future with a Career in Construction ManagementWhat does a construction manager do? See the daily work, the pay, how to become a construction manager, and a scholarship to help you get started.1/2" X 6-1/2" SDS-P...
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OPINIONHow Trump's OBBBA Impacts Construction and ManufacturingGet the definitive construction industry outlook for 2025. Will OBBBA bill create a boom, or will the Fed's wall of high interest rates cause a bust?
Opinion
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8 min
Jul 9, 2025
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OPINIONWill tariffs help or hurt the US construction sector?Explore how tariffs on imported materials impact the U.S. construction industry. Learn whether these trade policies help or hurt builders, contractors, and the
Opinion
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5 min
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OPINIONDrop Interest Rates Already, and Let’s Get to Work!"Explore how potential Fed rate cuts could ignite the construction industry, from shower doors to storefronts. Discover why contractors and tool suppliers are r
Opinion
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OPINION·GLASS & SHOWERThe Status of the Construction Sector - Summer 2024As we delve into the second half of 2024, the construction sector, particularly in the niche of custom bathrooms and shower doors, is experiencing a dynamic mix
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GUIDES·ELECTRICALWhat Is a Reamer? Car, Bridge and Pipe Reamers ExplainedWhat a reamer does, how car and bridge reamers line up bolt holes, the reamer size for each bolt, how fast to run one, and pipe reamers for conduit and copper, with priced picks.Escariador hexagona...Escariador para aut...Escariador de puent...
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9 min
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OPINIONHow 3D Manufacturing Revolutionizes ToolingDiscover how 3D manufacturing revolutionizes tooling, unlocking limitless potential. Explore the transformative impact of additive manufacturing in this insight
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CHARTS & CALCULATORS·METAL FABRICATIONTap Drill Size Chart and Drill Decimal EquivalentsThe tap drill for every inch, metric and pipe thread, how to calculate it, and a decimal chart for every fraction, number, letter and metric drill, with priced drill and tap picks.#7 ThunderBit® HD d...Tapón ThunderTap NC...Macho de roscar com...
Charts & Calculators
Metal Fabrication
8
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GUIDES·METAL FABRICATIONDrill Speed Chart: The Right RPM, and Why Heat Kills BitsStarting RPM for drill bits, hole saws, step drills and countersinks in aluminum, brass, steel, cast iron and stainless, plus how to stop overheating.Sierra de corona de...Broca escalonada M2...Punta ThunderBit® d...
Guides
Metal Fabrication
7
12 min
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GUIDESImpact vs Regular Bit Tips: Precision and PerformanceImpact bits vs regular bits: what makes impact bits tougher, when a regular bit is the better pick, and how to choose the right bit for your driver and job.Puntas de impacto B...Puntas de impacto B...Puntas de impacto B...
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6 min
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GUIDES·ELECTRICALHow to Choose Reciprocating Saw Blades (and Make Them Last)How to choose reciprocating saw blades: TPI by material, blade length, thickness, carbide vs bi-metal cost, and what fits DeWalt, Milwaukee and Ryobi saws.Recipientes para br...6" x 3/4" x 0,050" ...Recipientes para ma...
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Electrical
6
10 min
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GUIDES·GLASS & SHOWERFrameless Shower Door Installation on Tile, Step by StepA step-by-step frameless shower door installation on tile: blocking, the right bit for hinge holes, countersinking so tile doesn't crack, glass weights, sealing, and troubleshooting.Broca de diamante b...Broca de diamante b...Broca para vidrio R...
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Glass & Shower
8
7 min
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GUIDES·GLASS & SHOWERHow to Drill Through Tile and Porcelain Without Cracking ItHow to drill through tile and porcelain without cracking it: the right diamond bit, the hole size for every common pipe, drill or angle grinder, notches at the edge, and troubleshooting.Broca de diamante b...Broca de diamante b...Broca para azulejos...
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8
8 min
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8
13 min
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