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Product Details

304/316 stainless steel · long through-hole tubular parts

Machined Parts / Stainless Steel Parts

Stainless Steel Drill Bushing

Drill bushings are slender tubular parts; through-hole straightness and wall thickness uniformity determine guiding accuracy, requiring prevention of deep-hole drilling deflection.

Material304 / 316 / 316L stainless steel
Accuracy±0.005mm
Surface TreatmentRa0.4 or below, passivation / electropolishing available
Lead TimePrototyping 3-7 business days
Applicationsdrill jigs and tooling, molds, precision machining
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Consultation Hotline 0510-85616768(weekdays 8:00-17:30)

Product Details

Deep holes use a stepwise reaming drilling method, withdrawing midway to clear chips and reduce drill deflection; the outer circle is machined with the inner bore as the datum to ensure uniform wall thickness; after machining, a go gauge passes through the hole to check straightness.

Machining range

  • Material: 304 / 316 / 316L stainless steel
  • Machining accuracy: ±0.005mm
  • Surface treatment: Ra0.4 or below, passivation / electropolishing available
  • Delivery methods: one-off prototyping / small batches / volume supply

Customization and delivery

Customization per customer drawings is supported, with STEP / DWG / PDF formats accepted; material certificates, first-article inspection reports and finished product inspection reports are provided, prototyping takes 3-7 business days, and volume orders are delivered per the scheduling plan.

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