
GD&T In-Depth Analysis: Understanding Geometric Dimensioning and Tolerancing
A comprehensive guide to GD&T symbols, rules, and how proper tolerancing improves manufacturing quality and reduces cost.

Machine Running
CNC Milling Machine
3/4/5-Axis Precision Milling
Custom CNC machined parts for engineers worldwide. Precision CNC machining services in Dongguan, China, from single-piece prototypes to 10,000+ unit production runs.
Ginwate is an ISO 9001 and 14001 certified CNC machining manufacturer in Dongguan, China, making custom milled, turned, and 5-axis precision parts to ±0.005 mm tolerance, with no minimum order and quotes in 1 to 12 hours.
Ginwate is a custom CNC machining manufacturer in Dongguan, China, producing precision machined parts to tolerances as tight as ±0.005 mm. We run CNC milling, CNC turning, and 5-axis machining across aluminum, stainless steel, titanium, brass, and engineering plastics, with no minimum order quantity and ISO 9001 + 14001 certified quality. Upload your CAD drawing for a quote in 1 to 12 hours.
Explore our services:Delivered to 50+ countries via DHL, FedEx and UPS with full export documentation.
200+
Global OEM Clients
50+
Countries Served
20yr
Operating History
CNC machining, injection molding, 3D printing, sheet metal fabrication, surface finishing, and assembly. Six in-house manufacturing processes, every tolerance held without a hand-off.
Aerospace seals. Medical implants. EV battery housings. Semiconductor handling. Where precision CNC machined parts ship into critical systems, Ginwate is there.

Precision parts for drones, aircraft structures, and navigation systems with strict quality requirements.

High-volume CNC components for automotive OEMs and tier-1 suppliers across global supply chains.

Biocompatible precision parts for surgical instruments, implants, and diagnostic equipment.

Tight-tolerance housings, brackets, and heat sinks for consumer electronic products.

Structural and motion components for industrial robots and automated assembly systems.

Durable CNC parts for pumps, valves, and heavy industrial machinery.

Precision components for renewable energy systems, wind turbines, and solar infrastructure.
Twenty-four of the forty-one CNC machined parts we drew, dimensioned and machined for clients across medical, robotics, aerospace and industrial sectors, real precision CNC machining work, not stock photos.
See all 41 drawings
Locating block · ±0.02 mm GD&T

Robot joint housing · 6-bolt mount

Drive pulley · Ø44 hub

Mounting bracket · Cr-Mo alloy

Surgical fixture plate

Arm linkage · R30 form

Structural component · Ti-6Al-4V

Pump body · machined casting

Implant guide · biocompatible

Servo bracket · 8-bolt pattern

Aviation hardware · Mil-Spec

Heavy-duty mount · 4140 steel

Bone-plate template

End-effector mount

Engine accessory bracket

Shaft adapter · keyed bore

Endoscope housing

Encoder housing

Manifold block · 6 ports

Surgical jig · multi-hole

Gripper base plate

Bearing housing flange

Bone-screw locator

Dental abutment fixture

Locating block · ±0.02 mm GD&T

Robot joint housing · 6-bolt mount

Drive pulley · Ø44 hub

Mounting bracket · Cr-Mo alloy

Surgical fixture plate

Arm linkage · R30 form

Structural component · Ti-6Al-4V

Pump body · machined casting

Implant guide · biocompatible

Servo bracket · 8-bolt pattern

Aviation hardware · Mil-Spec

Heavy-duty mount · 4140 steel

Bone-plate template

End-effector mount

Engine accessory bracket

Shaft adapter · keyed bore

Endoscope housing

Encoder housing

Manifold block · 6 ports

Surgical jig · multi-hole

Gripper base plate

Bearing housing flange

Bone-screw locator

Dental abutment fixture

Dental abutment fixture

Bone-screw locator

Bearing housing flange

Gripper base plate

Surgical jig · multi-hole

Manifold block · 6 ports

Encoder housing

Endoscope housing

Shaft adapter · keyed bore

Engine accessory bracket

End-effector mount

Bone-plate template

Heavy-duty mount · 4140 steel

Aviation hardware · Mil-Spec

Servo bracket · 8-bolt pattern

Implant guide · biocompatible

Pump body · machined casting

Structural component · Ti-6Al-4V

Arm linkage · R30 form

Surgical fixture plate

Mounting bracket · Cr-Mo alloy

Drive pulley · Ø44 hub

Robot joint housing · 6-bolt mount

Locating block · ±0.02 mm GD&T

Dental abutment fixture

Bone-screw locator

Bearing housing flange

Gripper base plate

Surgical jig · multi-hole

Manifold block · 6 ports

Encoder housing

Endoscope housing

Shaft adapter · keyed bore

Engine accessory bracket

End-effector mount

Bone-plate template

Heavy-duty mount · 4140 steel

Aviation hardware · Mil-Spec

Servo bracket · 8-bolt pattern

Implant guide · biocompatible

Pump body · machined casting

Structural component · Ti-6Al-4V

Arm linkage · R30 form

Surgical fixture plate

Mounting bracket · Cr-Mo alloy

Drive pulley · Ø44 hub

Robot joint housing · 6-bolt mount

Locating block · ±0.02 mm GD&T
Tolerance tables, material picks, DFM tips and CNC machining best practices. Written by the engineers who run the machines.

A comprehensive guide to GD&T symbols, rules, and how proper tolerancing improves manufacturing quality and reduces cost.

From 3-axis to 5-axis machining, learn how to select the right CNC process for your part geometry and material requirements.

Process capability (Cpk) is essential for ensuring your CNC supplier can consistently meet your tolerance requirements.
Twelve frequently asked CNC machining questions covering tolerances, materials, file formats, shipping, and what to expect when you send us a drawing for quote.