ER Mini-Nut & Straight Shank Extensions

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Extension length should not exceed a 4:1 ratio of length to diameter. For example, a 1/2" shank should not extend more than 2" in front of the holder. This is true only for applications where the extension is rotating.

Part No.	C	d	I1	L	I2	D	d	Buy Now	Wrench	Nut Type
04889	3/8"	ER 8M	100mm	124mm	24mm	12mm	ER8	Add to cart	04620	M
04891	1/2"	ER 11M	140mm	166.5mm	26.5mm	16mm	ER11	Add to cart	04621	M
04893	5/8"	ER 11M	140mm	158.5mm	18.5mm	16mm	ER11	Add to cart	04621	M
04895	1/2"	ER 16M	140mm	177mm	37mm	22mm	ER16	Add to cart	04622	M
04896	3/4"	ER 16M	140mm	165mm	25mm	22mm	ER16	Add to cart	04622	M
04892	1/2"	ER 20M	140mm	140mm	26.5mm	16mm	ER20	Add to cart	04623	M
04894	3/4"	ER 20M	140mm	180mm	40mm	28mm	ER20	Add to cart	04623	M
04897	1"	ER 20M	140mm	168mm	28mm	28mm	ER20	Add to cart	04623	M
04898	3/4"	ER 25M	100mm	149mm	49mm	35mm	ER25	Add to cart	04624	M
04888	1.0"	ER 25M	140mm	190mm	50mm	35mm	ER25	Add to cart	04624	M

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ER Straight Shank Extensions

ER collet chucks handle a wide range of machining jobs without having to buy new tool holders. Simply choose the right size collet for the job, set tool depth, and tighten the collet nut and pull stud to the proper torque using a torque wrench and tightening fixure.

Features

• "Power Coat" nut included with each

• 0.0001" runout from shank to pocket

• Precision ground for best T.I.R.

Techniks tool holders are manufactured to the highest possible standards to extend perishable cutting tool life and improve CNC machine performance.

Collets are available for: drilling, milling, coolant thru, and high-speed applications. Special “DNA” Dead Nuts Accurate collets are used for small drills (6mm and smaller) to maintain T.I.R. at those sizes.

Use "Power Coat" nuts to increase the holding power and safety of your tool holders. High holding power extends cutting tool life and improves surface finish.

Refer to the chart below to order ER Straight Shank collet chuck tool holders.

ER Straight Shank Tool Holders

SEARCH Advanced search.

Back to Catalog Index

CATEGORIES

MANUFACTURERS

YOUR CART

AUTHENTICATION

ER Straight Shank Extensions

ER collet chucks handle a wide range of machining jobs without having to buy new tool holders. Simply choose the right size collet for the job, set tool depth, and tighten the collet nut and pull stud to the proper torque using a torque wrench and tightening fixure.

Features

• "Power Coat" nut included with each • 0.0001" runout from shank to pocket • Precision ground for best T.I.R.

Techniks tool holders are manufactured to the highest possible standards to extend perishable cutting tool life and improve CNC machine performance.

Collets are available for: drilling, milling, coolant thru, and high-speed applications. Special “DNA” Dead Nuts Accurate collets are used for small drills (6mm and smaller) to maintain T.I.R. at those sizes.

Use "Power Coat" nuts to increase the holding power and safety of your tool holders. High holding power extends cutting tool life and improves surface finish.

Refer to the chart below to order ER Straight Shank collet chuck tool holders.

ER Straight Shank Tool Holders

• "Power Coat" nut included with each

• 0.0001" runout from shank to pocket

• Precision ground for best T.I.R.