Precision Dial Bore Gauge Kit – Engine Cylinder Measuring Tool 0.01mm/0.0005″ Accuracy (6-160mm / 0.24-6″)

Professional dial bore gauge set with 0.01mm/0.0005″ high-precision dial indicator (0.001″ optional)
Creamic contact moving tip and anvils are optional（Features optional ceramic contact tips and anvils for wear resistance, screw-type anvils）
Protection cover for dial indicator is optional
Screw type anvils for bore gauge over 18mm

Product Description:

Achieve ultra-precise internal diameter measurements with our professional Dial Bore Gauge Kit. Engineered for mechanics, machinists, and engineers, this tool is essential for measuring engine cylinders, bearings, and other precision bores with an accuracy of 0.01mm or 0.0005″. The gauge offers optional ceramic-tipped contacts for extended durability and comes with a protective cover to safeguard the dial indicator during use.

Key Features

High-Precision Dial Indicator: Graduation of 0.01mm or 0.0005″ (optional 0.001″ available).
Durable Construction: Optional ceramic moving tips and anvils for enhanced wear resistance.
Protective Cover: Shield the dial indicator from dust, impact, and debris.
Interchangeable Anvils: Screw-type anvils enable easy replacement and are required for measurements above 18mm.
Wide Measurement Range: Available in multiple sizes from 6mm to 450mm (0.24″ to 16″).

Specifications Table

Model No.	Range	Depth	Anvil Type	Anvil No.	Sub-Anvils
421-10	6-10mm	40mm	A	9	–
421-18	10-18mm	100mm	B	9	–
421-35	18-35mm	150mm	C	9	–
421-50	35-50mm	150mm	D	4	–
421-100	50-100mm	150mm	D	11	–
421-160	50-160mm	150mm	D	12	1
421-250	160-250mm	250mm	D	5	1
421-450	250-450mm	250mm	D	5	2
421-0.4	0.24-0.4″	1.57″	A	9	–
421-0.7	0.4-0.7″	4″	B	9	–
421-1.5	0.7-1.5″	6″	C	8	–
421-2.4	1.4-2.4″	6″	D	6	–
421-4	2-4″	6″	D	11	–
421-6	2-6″	6″	D	11	1
421-10	6-10″	16″	D	6	1
421-16	10-16″	16″	D	5	2

Applications

Engine cylinder bore measurements
Bearing housing inspection
Hydraulic cylinder assessment
Precision machining and quality control