Sumitomo Electric Hardmetal BU Type Cartridge Unit

Standard BU type cartridge unit with pin-lock clamping and adjustment mechanism, negative rake.

Key features

For boring heads and multi-tool holders
Right- and left-hand versions
Insert wrench not included

BU224 R		Min machining dia (mm): 48 \| Stock: Yes
BU225 R		Min machining dia (mm): 60 \| Stock: Yes
BU252 R		Min machining dia (mm): 24 \| Stock: Yes
BU252 L		Min machining dia (mm): 24 \| Stock: Yes
BU253 R		Min machining dia (mm): 30 \| Stock: Yes
BU254 R		Min machining dia (mm): 38 \| Stock: Yes
BU255 R		Min machining dia (mm): 48 \| Stock: Yes
BU255 L		Min machining dia (mm): 48 \| Stock: Yes
BU256 R		Min machining dia (mm): 55 \| Stock: Yes
BU293 R		Min machining dia (mm): 30 \| Stock: Yes
BU294 R		Min machining dia (mm): 38 \| Stock: Yes
BU295 R		Min machining dia (mm): 48 \| Stock: Yes
BU295 L		Min machining dia (mm): 48 \| Stock: Yes
BU295E L		Min machining dia (mm): 48 \| Stock: Yes
BU113 R		Min machining dia (mm): 30 \| Stock: Yes
BU114 R		Min machining dia (mm): 38 \| Stock: Yes
BU115 R		Min machining dia (mm): 48 \| Stock: Yes
BU133 R		Min machining dia (mm): 30 \| Stock: Yes
BU134 R		Min machining dia (mm): 38 \| Stock: Yes
BU134 L		Min machining dia (mm): 38 \| Stock: Yes
BU135 R		Min machining dia (mm): 48 \| Stock: Yes
BU135 L		Min machining dia (mm): 48 \| Stock: Yes
BU134E L		Min machining dia (mm): 30 \| Stock: Yes
BU135E L		Min machining dia (mm): 38 \| Stock: Yes
BU142 R		Min machining dia (mm): 24 \| Stock: Yes
BU142 L		Min machining dia (mm): 24 \| Stock: Yes
BU143 R		Min machining dia (mm): 30 \| Stock: Yes
BU144 R		Min machining dia (mm): 38 \| Stock: Yes
BU144 L		Min machining dia (mm): 38 \| Stock: Yes
BU145 R		Min machining dia (mm): 48 \| Stock: Yes
BU145 L		Min machining dia (mm): 48 \| Stock: Yes
BU152 R		Min machining dia (mm): 24 \| Stock: Yes
BU152 L		Min machining dia (mm): 24 \| Stock: Yes
BU153 R		Min machining dia (mm): 30 \| Stock: Yes
BU153 L		Min machining dia (mm): 30 \| Stock: Yes
BU154 R		Min machining dia (mm): 38 \| Stock: Yes
BU154 L		Min machining dia (mm): 38 \| Stock: Yes
BU155 R		Min machining dia (mm): 48 \| Stock: Yes
BU155 L		Min machining dia (mm): 48 \| Stock: Yes
BU183 R		Min machining dia (mm): 30 \| Stock: Yes
BU184 R		Min machining dia (mm): 38 \| Stock: Yes
BU185 R		Min machining dia (mm): 48 \| Stock: Yes
BU194 L		Min machining dia (mm): 30 \| Stock: Yes
BU195 L		Min machining dia (mm): 38 \| Stock: Yes

Boring CartridgesSumitomo Electric Hardmetal

44 product codes available in this family

Sourced direct from KoreaExport-ready supplyCompetitive pricing

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Sumitomo Electric Hardmetal BU Type Cartridge Unit

Brand Sumitomo Electric Hardmetal·Boring Cartridges

Available part numbers (44)

BU224 R, BU225 R, BU252 R, BU252 L, BU253 R, BU254 R, BU255 R, BU255 L, BU256 R, BU293 R + 34 more — see full table ↓

How to order

Send the Sumitomo Electric Hardmetal part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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View full details

	Product code	Spec
	BU224 R	Min machining dia (mm): 48 \| Stock: Yes
	BU225 R	Min machining dia (mm): 60 \| Stock: Yes
	BU252 R	Min machining dia (mm): 24 \| Stock: Yes
	BU252 L	Min machining dia (mm): 24 \| Stock: Yes
	BU253 R	Min machining dia (mm): 30 \| Stock: Yes
	BU254 R	Min machining dia (mm): 38 \| Stock: Yes
	BU255 R	Min machining dia (mm): 48 \| Stock: Yes
	BU255 L	Min machining dia (mm): 48 \| Stock: Yes
	BU256 R	Min machining dia (mm): 55 \| Stock: Yes
	BU293 R	Min machining dia (mm): 30 \| Stock: Yes
	BU294 R	Min machining dia (mm): 38 \| Stock: Yes
	BU295 R	Min machining dia (mm): 48 \| Stock: Yes
	BU295 L	Min machining dia (mm): 48 \| Stock: Yes
	BU295E L	Min machining dia (mm): 48 \| Stock: Yes
	BU113 R	Min machining dia (mm): 30 \| Stock: Yes
	BU114 R	Min machining dia (mm): 38 \| Stock: Yes
	BU115 R	Min machining dia (mm): 48 \| Stock: Yes
	BU133 R	Min machining dia (mm): 30 \| Stock: Yes
	BU134 R	Min machining dia (mm): 38 \| Stock: Yes
	BU134 L	Min machining dia (mm): 38 \| Stock: Yes
	BU135 R	Min machining dia (mm): 48 \| Stock: Yes
	BU135 L	Min machining dia (mm): 48 \| Stock: Yes
	BU134E L	Min machining dia (mm): 30 \| Stock: Yes
	BU135E L	Min machining dia (mm): 38 \| Stock: Yes
	BU142 R	Min machining dia (mm): 24 \| Stock: Yes
	BU142 L	Min machining dia (mm): 24 \| Stock: Yes
	BU143 R	Min machining dia (mm): 30 \| Stock: Yes
	BU144 R	Min machining dia (mm): 38 \| Stock: Yes
	BU144 L	Min machining dia (mm): 38 \| Stock: Yes
	BU145 R	Min machining dia (mm): 48 \| Stock: Yes
	BU145 L	Min machining dia (mm): 48 \| Stock: Yes
	BU152 R	Min machining dia (mm): 24 \| Stock: Yes
	BU152 L	Min machining dia (mm): 24 \| Stock: Yes
	BU153 R	Min machining dia (mm): 30 \| Stock: Yes
	BU153 L	Min machining dia (mm): 30 \| Stock: Yes
	BU154 R	Min machining dia (mm): 38 \| Stock: Yes
	BU154 L	Min machining dia (mm): 38 \| Stock: Yes
	BU155 R	Min machining dia (mm): 48 \| Stock: Yes
	BU155 L	Min machining dia (mm): 48 \| Stock: Yes
	BU183 R	Min machining dia (mm): 30 \| Stock: Yes
	BU184 R	Min machining dia (mm): 38 \| Stock: Yes
	BU185 R	Min machining dia (mm): 48 \| Stock: Yes
	BU194 L	Min machining dia (mm): 30 \| Stock: Yes
	BU195 L	Min machining dia (mm): 38 \| Stock: Yes

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Sumitomo Electric Hardmetal BU Type Cartridge Unit