Twin Boring Heads .95" to 6.00" (25mm to 152.4 mm)

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• Independent height and diameter setting permits balanced cutting with production of almost perfectly round holes from the beginning, irrespective of core shifts.

• Two height balanceable cutting edges results in metal removal at rates almost 4 times that of a single cutter.

• Height adjustments are made with a cam that supports the insert holder where needed, at the furthest radial point.

• Each insert holder can be adjusted individually in diameter with a dial screw for fast, easy set-up operations.

• Balanced or stepped cutting can be done with the same set of insert holders permitting heavy stock removal and eliminating the need to purchase two sets of insert holders.

• Standard through-spindle coolant capability cools the insert and flushes chips.

• ISO standard inserts – requires no special expensive inserts.

• Square SCMT insert holders with 6° lead for through hole boring or extreme core shifts.

• Diamond CCMT insert holders for boring to a square holder, or deep bore lengths.

• Trigon WCMT insert holders for applications requiring heavy stock removal.

TWIN BORE ROUGHING

Part Number	Bore Min. Range	Bore Max. Range	Connection Size	Insert Holder Size	Body Diameter	C	Weight (lbs.)
PC2-4205	.95 (24.1)	1.31 (33.3)	PC2	21	.91 (23)	1.39 (33.5)	.2
PC2-4205	1.13 (28.7)—	1.48 (37.6)	PC2	22	.91 (23)	1.39 (33.5)	.2
PC3-4305	1.27 (32.3)	1.70 (43.2)	PC3	31	1.18 (30)	1.57 (40)	.4
PC3-4305	1.50 (38.1)∗	1.95 (49.5)	PC3	32	1.18 (30)	1.57 (40)	.4
PC4-4405	1.58 (40)	2.17 (55.1)	PC4	41	1.50 (38)	1.85 (47)	.7
PC4-4405	2.09 (53)∗	2.53 (64.3)	PC4	42	1.50 (38)	1.85 (47)	.7
PC5-4505	2.06 (52.4)	2.73 (69.3)	PC5	51	1.93 (49)	2.24 (57)	1.4
PC5-4505	2.58 (65.5)∗	3.30 (83.8)	PC5	52	1.93 (49)	2.24 (57)	1.4
PC6-4605	2.61 (66.3)	3.48 (88.4)	PC6	61	2.48 (63)	2.79 (71)	2.8
PC6-4605	3.36 (85.3)	4.20 (106.7)	PC6	62	2.48 (63)	2.79 (71)	2.8
PC6-4605	4.10 (104.1)∗	4.86 (123.4)	PC6	63	2.48 (63)	2.79 (71)	2.8
PC6-4606	3.92 (99.6)	4.84 (123)	PC6	61	3.54 (90)	2.79 (71)	3.9
PC6-4606	4.68 (119)	5.54 (140.7)	PC6	62	3.54 (90)	2.79 (71)	3.9
PC6-4606	5.44 (138)	6.20 (157.5)	PC6	63	3.54 (90)	2.79 (71)	3.9
PC7-4705	3.92 (99.6)	4.84 (122.9)	PC7	61	3.54 (90)	4.60 (117)	–
PC7-4705	4.68 (119)	5.54 (140.7)	PC7	62	3.54 (90)	4.60 (117)	–
PC7-4705	5.44 (138)	6.00 (152.4)	PC7	63	3.54 (90)	4.60 (117)	–
∗For use when reduced boring shaft diameter is required for clearance. PC Connection OD should not be larger than the starting diameter of the hole.