These drills are designed for clean, straight bores in non‑ferrous metals and plastics where chip control and guidance are important. They are made from micro‑grain solid carbide and precision ground on Swiss TTB and German WALTER centers. Sub‑micron edge prep, polished lands, and tight diameter tolerances support stable cutting at higher feeds and speeds. Options include right‑ or left‑hand cutting, jobber or screw machine lengths, metric or fractional diameters, and several coatings. Request a quote or contact us to configure a tool for your application.
The half‑round profile uses guiding lands to reduce grab in soft materials like aluminum and brass and to produce straight holes with a fine finish. High rigidity and controlled edge hone help reduce vibration and chatter, improving cycle times and tool life compared with HSS. Optimized relief lowers friction, and controlled runout keeps bores on size for consistent results in plastics.
Select right‑hand or left‑hand cutting to match spindle rotation on lathes, Swiss‑type, and screw machines. Left‑hand tools can help prevent pull‑in on thin‑wall parts and tubing, while right‑hand variants suit standard drilling and milling spindles. Land polishing and relief can be tuned to the material and process.
Choose jobber length for reach and general holemaking. Use screw machine length when maximum rigidity, tight location, and lower deflection are required in production.
Our portfolio balances substrate, geometry, and finish to deliver reliable performance across materials and machine types.
Micro‑grain carbide provides hardness and toughness for consistent edges. The half‑round profile with polished guiding lands and precise relief angles helps steer straight and resist deflection. Edge hone and point preparation are tuned to minimize burr and avoid grabbing in ductile, free‑cutting materials.
Diameter tolerances down to ±5 µm and concentricity control deliver predictable hole size and roundness. Tight runout on the shank and cutting profile supports fine bore finish and accurate location on multi‑spindle and high‑speed machines.
Uncoated, high‑polish variants perform well in aluminum and brass. DLC or TiB2 can reduce built‑up edge on sticky alloys. TiN or TiAlN may extend life in tougher materials. Mirror‑like finishes lower friction and heat to stabilize chip flow and maintain hole quality.
Configure diameters, shanks, and lengths to match your program. Options include metric and fractional sizes, steps, corner chamfers, coolant‑through channels (where applicable), and land geometry tailored to the material.
Standard diameters cover common fractional and metric increments in jobber and screw machine lengths.
Submit a drawing or sample for special land widths, relief angles, steps, or shank modifications.
Choose straight or reduced shank, with specific tolerances for high‑precision collets and holders.
Coolant‑through and polished land strategies support chip flow and thermal stability in deep holes and continuous cuts.
Guided cutting reduces grabbing and tearing, producing bright finishes and straight bores in ductile alloys. Polished lands and suitable coatings help limit built‑up edge and heat in aluminum, brass, and copper.
Low‑friction surfaces and tuned edges help minimize melting, fuzz, and delamination. The geometry reduces vibration for clean entry and exit.
Use these tools for accurate pilot and semi‑finish passes before reaming or boring. They stabilize hole geometry and support consistent downstream finishes.
Compatible with fixed and live tooling. Left/right‑hand options fit turning spindles, and short lengths improve rigidity on screw machines.
Built in our Changzhou, Jiangsu facility (4,316 m²) with controlled processes for repeatability from prototype to volume.
Swiss TTB Micro, WALTER HELITRONIC, ANCA, and DECKEL grinding centers deliver form accuracy. ZOLLER, PG1000 (USA), PARLEC (USA), MRPG1000, and German test instruments verify geometry, edge prep, concentricity, and surface finish.
Process control and presetting support lot‑to‑lot uniformity, predictable tool performance, and reduced setup time.
ISO9001:2023–2026 and SGS certifications underpin traceable quality; material and process records are available on request.
Use high‑precision collet chucks to minimize runout and improve rigidity, helping hole straightness and surface finish.
Combine pilot passes with CNC inserts and solid carbide reamers to reach final dimensions and finishes on tight‑tolerance parts.
Provide drawings or samples for application‑specific designs. Our engineers can recommend substrate, land width, relief, and point preparation.
Receive guidance on coatings, length, and cutting direction based on material, fixturing, and spindle rotation.
Efficient production and protective packaging help maintain edge integrity, with reliable lead times for prototypes and repeat orders. Contact us to discuss your program.
Solid carbide supports higher surface speeds with lower wear, helping reduce changeovers.
Rigidity and finish stability promote straighter bores and repeatable dimensions, reducing scrap and secondary operations.
This category includes right‑ and left‑hand carbide half‑round drills in jobber and screw machine lengths, offered in metric and fractional diameters with polished or coated lands. Non‑standard requests—steps, special shank fits, relief angles, and coolant features—are built to spec to align with your material, machine type, and clamping method.
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