R8 TO JT3 DRILL CHUCK ARBOR - A0049 - Shop-Force

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R8 TO JT3 DRILL CHUCK ARBOR – A0049 – Shop-Force

$31.98

SKU: A0049

Out of stock

R8 TO JT3 DRILL CHUCK ARBOR Shop’sChoice™ (A0049). Precision-engineered drill chuck arbor for accurate, secure drill chuck mounting. See Specifications & Tolerances and the full R8 arbor comparison chart for detailed dimensions and compatibility.

Specifications & Tolerances

HIGHEST ACCURACY: Precision Ground
HIGHEST TOLERANCE: Taper to Shank Runout < 0.0008"
Shank Taper: R-8
Thread Size: 3/8"-16 UNC
Mount Taper: Jacobs Taper
Hardness: 28-32 HRC
HIGH QUALITY STEEL: Made of High Quality 42CrMo STEEL..
Customer Satisfaction Guarantee
Veteran Owned & Operated

Applications

Designed for R8 Spindle Milling Machines
Accurate Drilling and Light Milling Operations
Secure Jacobs Taper Chuck Mounting
Improves Tooling Versatility on R8 Mills
Ideal for Prototype, Maintenance, and Job-Shop Work

Order #	Shank Size	JT	Thread Size	Material	Hardness	L	L2	D	D2
A0054	R8	1JT	1/4"-20 UNC	42CrMo	28-32 HRC	4.80"	0.69"	0.384"	0.333"
A0051	R8	2JT	3/8"-16 UNC	42CrMo	28-32 HRC	5.04"	0.93"	0.559"	0.488"
A0052	R8	33JT	1/2"-20 UNF	42CrMo	28-32 HRC	5.2"	1.075"	0.624"	0.561"
A0049	R8	3JT	3/8"-16 UNC	42CrMo	28-32 HRC	5.39"	1.26"	0.858"	0.746"
A0053	R8	4JT	1/2"-20 UNF	42CrMo	28-32 HRC	5.83"	1.675"	1.124"	1.037"
A0050	R8	6JT	3/8"-16 UNC	42CrMo	28-32 HRC	5.39"	1.08"	0.676"	0.624"

Dimensional Disclaimer: All dimensions are provided for reference purposes and are subject to change without notice. Please confirm critical dimensions before ordering to ensure proper fit and compatibility with your application.

Shop-Force Quality

Shop-Force manufactures precision tooling and industrial workholding products for professional machining, manufacturing, and maintenance applications. Our products are supported by in-house quality control and a commitment to consistent performance and reliability.