Weldon, R8, and Other Tool Holders

R8 Tool Holder

B 20 22 50
B = toolholder style
20 = toolholder size
22 = connection diameter
50 = BD boring depth

Features

Convert your end mill holder into a precision boring head holder!
Two offset axial tapered locking screws maximize rigidity and allow fast tool changes.

R8 Diagram

Boring depth (BD) is tool length plus boring head.

Other Tool Holders

Other tool holders are available on special order. These include:

CAT 30
Morse Taper
NMTB
DIN 69871 B

We can manufacture almost any special tool holder you may need. Simply provide an accurate drawing with all necessary dimensions along with your quantity and we will provide you with a quote.

Weldon 3/4" Size

Part No.	Description	D	d	BD
B 20.22.50W	3/4" - Weldon Holder - 45mm boring depth	22mm	12mm	45mm
B 20.22.100W	3/4" - Weldon Holder - 100mm boring depth	22mm	12mm	100mm
B 20.54.110W	3/4" - Weldon Holder - 110mm boring depth	54mm	12mm	110mm

Weldon 1" Size

Part No.	Description	D	d	BD
B 25.27.55W	1" - Weldon Holder - 50mm boring depth	27mm	15mm	50mm
B 25.27.100W	1" - Weldon Holder - 95mm boring depth	27mm	15mm	95mm
B 25.54.110W	1" - Weldon Holder - 110mm boring depth	54mm	15mm	110mm

Weldon 1-1/4" Size

Part No.	Description	D	d	BD
B 32.32.60W	1 1/4" - Weldon Holder - 60mm boring depth	32mm	20mm	60mm
B 32.32.100W	1 1/4" - Weldon Holder - 100mm boring depth	32mm	20mm	100mm
B 32.42.90W	1 1/4" - Weldon Holder - 90mm boring depth	42mm	24mm	90mm
B 32.54.110W	1 1/4" - Weldon Holder - 110mm boring depth	54mm	24mm	110mm

Weldon 1-1/2" Size

Part No.	Description	D	d	BD
B 40.42.90W	1 1/2" - Weldon Holder - 90mm bore depth	42mm	24mm	90mm
B 40.42.160W	1 1/2" - Weldon Holder - 160mm bore depth	42mm	24mm	160mm
B 40.54.110W	1 1/2" - Weldon Holder - 110mm bore depth	54mm	24mm	110mm

R8 Tool Holders

Part No.	Description	D	d	BD
R8 22.50	R8 Holder - 50mm boring depth	22mm	12mm	50mm
R8 27.60	R8 Holder - 60mm boring depth	27mm	15mm	60mm
R8 32.75W	R8 Holder - 75mm boring depth	32mm	20mm	75mm
R8 42.90	R8 Holder - 90mm boring depth	42mm	24mm	90mm