Okuma Howa Tool Blocks

Okuma Howa Tool Blocks
Tool Block Features

Bolt On Tool Blocks (Lathe Mounting Blocks & Block Tool Holders) for all types of Machines; New or Old.
Block Tool Holders have a specific Bolt Hole Pattern unique to each Machine Make and Model.
Select Block Tool Holders from list below. If you do not see your Machine Listed contact us at 888-988-8820. We sell Blocks for Every Machine.
Made From Alloy Steel; Precision Machined and Ground. High Pressure Coolant Nozzles.
Components Included: Wedges, Coolant Nozzles and Set Screws.
Internal Coolant Option available for all ID Tool Blocks; add “INT” to the Part Number.
Made in the USA.

New Items

VDI ID Block Tool Holders; convert your standard Bolt On Block Lathe to a VDI Turret.
ER 32 Collet ID Tool Blocks; offered in Standard Style and Recessed Style (Shown Below).
Need to Hold a Very Long Bar; we can make any ID Tool Block “Extended Style” – Increase your Gripping Power!
More ID Sizes Available – We make a variety of ID sizes Standard for All Blocks – Call for Listing & Prices!

To order any of these items enter the Part Number into the search bar above. (This will take you to the product page where you can add the item to the shopping cart)

Bolt Hole Pattern: 90mm x 70mm Machine Model	I.D.	Center Height	Part Number Int. Coolant: Add -INT	OD Turning Type I	OD Facing Type II	Price
H4	1.5"	40mm	HB4A-1 1/2	HO4A-1RL 1" Sq.	HF4A-1RL 1" Sq.	CALL
H4	2"	40mm	HB4A-2			CALL

Bolt Hole Pattern: 80mm x 50mm Machine Model	I.D.	Center Height	Part Number Int. Coolant: Add -INT	OD Turning Type I	OD Facing Type II	Price
H6	1.5"	40mm	HB6A-1.50	HO6A-1RL 1" Sq.	HF6A-1RL 1" Sq.	CALL
	2"	40mm	HB6A-2	HO6B-1RL 1" Sq.	HF6B-1RL 1" Sq.	CALL
	1.5"	60mm	HB6B-1.50			CALL
	2"	60mm	HB6B-2			CALL

Bolt Hole Pattern: 120mm x 80mm Machine Model	I.D.	Center Height	Part Number Int. Coolant: Add -INT	OD Turning Type I	OD Facing Type II	Price
H8	1.5"	155mm	HB8-1.50-N	HO8-1L-N 1" Sq.	HF8-1RL-N 1" Sq.	CALL
H8	1.75"	155mm	HB8-1.75-N	HO8-1R-N 1" Sq.		CALL

Bolt Hole Pattern: 90mm x 70mm Machine Model	I.D.	Center Height	Part Number Int. Coolant: Add -INT	OD Turning Type I	OD Facing Type II	Price
H8A	1.75"	120mm	HB8A-1.75-N	HO8B-1RN-N-W 1" Sq.	HF8A-1RN-N-W 1" Sq.	CALL
H8A	2"	120mm	HB8A-2-N			CALL

Bolt Hole Pattern: 95mm x 60mm Machine Model	I.D.	Center Height	Part Number Int. Coolant: Add -INT	OD Turning Type I	OD Facing Type II	Price
H10	1.5"	110mm	HB10-1.50-N	HO10-1RL-N-W 1" Sq.	HF10-1RL-N-W 1" Sq.	CALL
	1.75"	110mm	HB10-1.75-N	HO10-1.25-N-W 1.25" Sq.	HF10-1RL-N-W 1.25" Sq.	CALL
	2"	110mm	HB10-2-N			CALL
	2.5"	110mm	† HB10-2.50-N			CALL

Bolt Hole Pattern: 100mm x 90mm Machine Model	I.D.	Center Height	Part Number Int. Coolant: Add -INT	OD Turning Type I	OD Facing Type II	Price
*Signifies M16 Bolt H10A	2"	120mm	HB10A-2	HO10A-1 1" Sq.	HF10A-1 1" Sq.	CALL
	2.5"	120mm	† HB10A-2.5	HO10A-1.25 1.25" Sq.	HF10A-1.25 1.25" Sq.	CALL
				* HO10B-1 1" Sq.	* HF10B-1 1" Sq.	CALL
				* HO10B-1.25 1.25" Sq.	HF10B-1.25 1.25" Sq.	CALL

Bolt Hole Pattern: 75mm x 50mm Machine Model	I.D.	Center Height	Part Number Int. Coolant: Add -INT	OD Turning Type I	OD Facing Type II	Price
H12	1.5"	105mm	HB12-1.50-N	HO12-1RL-N-W 1" Sq.	HF12-1RL-N-W 1" Sq.	CALL
	1.75"	105mm	HB12-1.75-N			CALL
	2"	105mm	† HB12-2-N			CALL

Bolt Hole Pattern: 140mm x 115mm Machine Model	I.D.	Center Height	Part Number Int. Coolant: Add -INT	OD Turning Type I	OD Facing Type II	Price
H22	2"	128mm	† HB22-2-N	HO22-1RL 1" Sq.	HF22-1RL 1" Sq.	CALL
	2.5"	128mm	† HB22-2.50-N	HO22-1.25RL 1.25" Sq.	HF22-1.25RL 1.25" Sq.	CALL
	3"	128mm	† HB22-3-N			CALL

Bolt Hole Pattern: 75mm x 50mm Machine Model	I.D.	Center Height	Part Number Int. Coolant: Add -INT	OD Turning Type I	OD Facing Type II	Price
HB9	1.25"	130mm	HB9-1.25	HO9-.75 .75" Sq.	HF9-.75 .75" Sq.	CALL

Bolt Hole Pattern: 80mm x 50mm Machine Model	I.D.	Center Height	Part Number Int. Coolant: Add -INT	OD Turning Type I	OD Facing Type II	Price
HB23	1.5"	43mm	HB23-1.5	HO23-1RL 1" Sq.	HF23-1RL 1" Sq.	CALL