PROFESSIONAL REFERENCE CENTRE

Choose the right tool before you order

Practical guides, reference charts and selection advice to confirm dimensions, materials and applications.

11 technical guides
THREADING Tap drill size guide for machine tapping Find the recommended drill diameter before tapping and reduce the risk of damaged or weak threads. Open guide THREADING Metric tap diameter and pitch guide Quickly compare metric diameters, thread pitches and their corresponding tap-drill selections. Open guide EXTRACTION Left-hand tools for broken fasteners Learn when a left-hand drill can help and how to prepare for a cleaner fastener-removal job. Open guide EXTRACTION Screw extractor buying guide Choose the appropriate extractor style and size for the fastener, available access and break condition. Open guide DRILLING HSS vs cobalt drill bits for steel Compare heat resistance, tool life and the best applications for each drill-bit material. Open guide MAG DRILLING How to choose an annular cutter Confirm cutting depth, diameter, geometry and magnetic-drill compatibility before ordering. Open guide MAG DRILLING Magnetic drill parts buying guide Identify the components, accessories and replacement parts that fit your magnetic-drilling equipment. Open guide HOLE FINISHING Precision reamers buying guide Compare reamer styles for hole enlargement, alignment and accurate final sizing. Open guide TURNING Cutting tool bits for lathe work Select the tool material and geometry suited to common turning and profiling operations. Open guide FABRICATION Cutting tools for steel fabrication Explore the tool families used to drill, enlarge, countersink and prepare steel components. Open guide MASONRY Concrete and masonry tool-set guide Compare tool sets by work material, required diameter and jobsite application. Open guide

How to Select a Left-Hand Drill Bit

Left-hand drill selection depends on fastener size, access, flute length and machine reversal.

How to Select a Left-Hand Drill Bit

Left-hand drill selection depends on fastener size, access, flute length and machine reversal.

How to Organize Drill Bit Sets in a Tool Crib

Size systems and replenishment habits determine how quickly a set stays usable.

How to Cut Clean Holes in Sheet Metal

Thin metal requires a cutter that starts cleanly and leaves an edge ready for installation.

How to Drill Concrete for Anchors

Anchor holes require the correct bit system, diameter, depth and dust-control method.

How to Choose a Reamer Size

Reamer size follows the desired finished hole, allowance and tolerance.

How to Set Up a Countersink

A stable setup and controlled feed prevent chatter and oversized countersinks.

How to Choose End Mill Flute Count

Flute count affects chip space, rigidity, finish and material suitability.

How to Choose a Carbide Burr Shape

Burr shape should follow the edge, slot, cavity or profile being worked.

How to Select a Hole Saw

Hole saw choice depends on material, diameter, depth, arbor and pilot requirements.

How to Drill Porcelain Tile

Porcelain drilling needs controlled entry, cooling and a suitable tile bit.

How to Choose Tapping Lubricant

Lubricant reduces friction, heat and chip adhesion during internal threading.

How to Deburr Drilled Holes

Deburring removes sharp edges and improves fit, safety and assembly quality after holemaking.

How to Remove a Broken Bolt

A controlled sequence of center punching, left-hand drilling and extraction gives the best chance of removing a broken fastener.