Dorian Boring Bars | Raptor Supplies United Kingdom
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DORIAN Boring Bars

Includes a variety of left-hand and right-hand Dorian boring bars for various internal machining applications and for enlarging existing holes. Available in different shapes, sizes and thicknesses

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Boring is a mechanical process that makes existing holes in a solid material larger or deeper through the use of specialized tools, such as lathes, drills and boring bars. Boring bars have different...Read more
DORIAN -

Boring Bars

Boring bars by Dorian Tools are designed to enlarge a pre-drilled hole / cast by turning the inner diameter of the hole. These tools can work to any diameter by adjusting the speed, feed and nose radius and allowing a right- / left-handed operation as per user convenience. These Dorian turning tools feature a circle multi-lock / clamp-lock / screw-lock mounting which provides an easy-to-change insert facility and a secure connection to reduce vibrations. The round shanks of these boring bars are made of carbide / steel and are offered within the diameter range of 0.375 - 2.5 inches. For different applications, a wide range of shims are available to correct the inclination of the lead angle with the flank angle of the threads.

DORIAN S12S-CTFPR-3A
StyleModelInsert ThicknessClampClamp ScrewLead AngleMaterialMax. DepthMin. BoreMounting StylePrice (inc. VAT)
AS12S-CTFPR-3-HC-12CS-1260 DegreesSteel3"1.125"Clamp-Lock£311.97
AS40V-MTFNR-4-CL-9XNS-5911 DegreesSteel10"3.062"Multi-Lock£663.31
AS16T-SCLPR-3---0 DegreesSteel4"1.2"Screw Lock£359.95
AS12S-MTUNR-3-CL-6XNS-3814 DegreesSteel3"1"Multi-Lock£289.75
AS20U-MCLNL-4-CL-20XNS-4814 DegreesSteel5"1.53"Multi-Lock£412.28
AS08K-SDUCR-20.093"--9 DegreesSteel2"0.61"Screw Lock£115.46
AS08K-SCLCL-20.093"--9 DegreesSteel2"0.55"Screw Lock£101.95
AS08K-SWUCR-20.093"--9 DegreesSteel2"0.55"Screw Lock£101.95
AS06M-STFPR-20.093"--4 DegreesSteel1.5"0.47"Screw Lock£163.90
AS08M-STFPR-20.093"--2 DegreesSteel2"0.6"Screw Lock£160.73
AS08M-STUCR-20.093"--13 DegreesSteel2"0.602"Screw Lock£160.73
AS10R-SDUCL-20.093"--5 DegreesSteel2.5"0.84"Screw Lock£224.06
AS08M-SDUCR-20.093"--11 DegreesSteel2"0.78"Screw Lock£181.53
AS10R-SDUCR-20.093"--5 DegreesSteel2.5"0.84"Screw Lock£234.32
AS08R-SCLPR-20.093"--3 DegreesSteel2"0.6"Screw Lock£160.87
AS10R-STUCR-20.093"--10 DegreesSteel2.5"0.797"Screw Lock£190.15
AS08K-SCLCR-20.093"--9 DegreesSteel2"0.55"Screw Lock£106.61
AS10R-SCLCR-20.093"--10 DegreesSteel2.5"0.812"Screw Lock£192.95
AS06M-SCLCL-20.093"--15 DegreesSteel1.5"0.477"Screw Lock£162.61
AS06M-SDUCL-20.093"--11 DegreesSteel1.5"0.625"Screw Lock£172.01
AS06M-SDUCR-20.093"--11 DegreesSteel1.5"0.625"Screw Lock£171.98
AS10R-STFPR-20.093"--0 DegreesSteel2.5"0.77"Screw Lock£190.15
AS06M-STUCR-20.093"--15 DegreesSteel1.5"0.477"Screw Lock£160.73
AS08M-SCLCR-20.093"--13 DegreesSteel2"0.602"Screw Lock£168.71
AS06M-SCLCR-20.093"--15 DegreesSteel1.5"0.477"Screw Lock£160.56
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DORIAN -

Boring Bar 1 Inch

DORIAN AS-12R-ADCLNR-3A
StyleModelClampCutting DirectionInsert ShapeInsert SizeInsert ThicknessLead AngleStylePrice (inc. VAT)
AAS-12R-ADCLNR-3JSLC-HPC3-BRight Hand80 Degrees Diamond NegativeCNMG-3220.125"10 DegreesAS-12R-ADCLNR-3£398.18
AAS-12R-ADCLNL-3JSLC-HPC3-BLeft Hand80 Degrees Diamond NegativeCNMG-3220.125"10 DegreesAS-12R-ADCLNL-3£398.18
AAS-12R-ADWLNL-3JSLC-HPW3-LLeft Hand80 Degrees Trigon NegativeWNMG-3320.187"14 DegreesAS-12R-ADWLNL-3£398.18
AAS-12R-ADWLNR-3JSLC-HPW3-RRight Hand80 Degrees Trigon NegativeWNMG-3320.187"14 DegreesAS-12R-ADWLNR-3£398.18
DORIAN -

Boring Bar As-16r

DORIAN AS-16R-ADDUNR-3A
DORIAN AS-16R-ADDUNL-3B
StyleModelLead AngleClampClamp ScrewMin. BoreShimStyleWidth OffsetCutting DirectionPrice (inc. VAT)
AAS-16R-ADDUNR-311 DegreesJSLC-HPDT3-BRJSCS-031.3"S5511PAS-16R-ADDUNR-30.75"Right Hand£490.03
BAS-16R-ADDUNL-311 DegreesJSLC-HPDT3-BLJSCS-031.3"S5511PAS-16R-ADDUNL-30.75"Left Hand£490.03
BAS-16R-ADCLNR-414 DegreesJSLC-HPCTW-4NJSCS-041.28"S8012PAS-16R-ADCLNR-40.64"Right Hand£490.03
BAS-16R-ADCLNL-414 DegreesJSLC-HPCTW-4NJSCS-041.28"S8012PAS-16R-ADCLNL-40.64"Left Hand£490.03
AAS-16R-ADWLNR-414 DegreesJSLC-HPW3-RJSCS-041.28"IWSN-423AS-16R-ADWLNR-40.64"Right Hand£490.03
AAS-16R-ADWLNL-414 DegreesJSLC-HPW3-LJSCS-041.28"IWSN-423AS-16R-ADWLNL-40.64"Left Hand£490.03
DORIAN -

Boring Bar As-20s

DORIAN AS-20S-ADCLNL-4A
StyleModelMin. BoreClampCutting DirectionShimStyleWidth OffsetInscribed CircleInsert ShapePrice (inc. VAT)
AAS-20S-ADCLNL-41.53"JSLC-HPCTW-4NLeft HandS8012PAS-20S-ADCLNL-40.765"0.5"80 Degrees Diamond Negative£529.64
AAS-20S-ADCLNR-41.53"JSLC-HPCTW-4NRight HandS8012PAS-20S-ADCLNR-40.765"0.5"80 Degrees Diamond Negative£551.31
AAS-20S-ADWLNR-41.53"JSLC-HPW3-RRight HandIWSN-423AS-20S-ADWLNR-40.765"0.5"80 Degrees Trigon Negative£551.31
AAS-20S-ADWLNL-41.53"JSLC-HPW3-LLeft HandIWSN-423AS-20S-ADWLNL-40.765"0.5"80 Degrees Trigon Negative£551.31
AAS-20S-ADDUNL-42"JSLC-HPD4Left HandIDSN-433AS-20S-ADDUNL-41"0.5"55 Degrees Diamond Negative£551.31
AAS-20S-ADDUNR-42"JSLC-HPD4Right HandIDSN-433AS-20S-ADDUNR-41"0.5"55 Degrees Diamond Negative£551.31
AAS-20S-ADVUNL-32.25"JSLC-HPV3Left HandS3516PAS-20S-ADVUNL-31.125"0.375"35 Degrees Diamond Negative£631.39
AAS-20S-ADVUNR-32.25"JSLC-HPV3Right HandS3516PAS-20S-ADVUNR-31.125"0.375"35 Degrees Diamond Negative£631.39
DORIAN -

Boring Bar As-24s

DORIAN AS-24S-ADDUNR-4A
DORIAN AS-24S-ADWLNR-4B
DORIAN AS-24S-ADCLNL-4C
StyleModelShimClampCutting DirectionStyleWidth OffsetInscribed CircleInsert ShapeInsert SizePrice (inc. VAT)
AAS-24S-ADDUNR-4IDSN-433JSLC-HPD4Right HandAS-24S-ADDUNR-41.25"0.5"55 Degrees Diamond NegativeDNMG-432£581.94
AAS-24S-ADDUNL-4IDSN-433JSLC-HPD4Left HandAS-24S-ADDUNL-41.25"0.5"55 Degrees Diamond NegativeDNMG-432£581.94
BAS-24S-ADWLNR-4IWSN-423JSLC-HPW3-RRight HandAS-24S-ADWLNR-40.89"0.5"80 Degrees Trigon NegativeWNMG-432£581.94
AAS-24S-ADWLNL-4IWSN-423JSLC-HPW3-LLeft HandAS-24S-ADWLNL-40.89"0.5"80 Degrees Trigon NegativeWNMG-432£581.94
AAS-24S-ADVUNL-3S3516PJSLC-HPV3Left HandAS-24S-ADVUNL-31.25"0.375"35 Degrees Diamond NegativeVNMG-322£643.20
AAS-24S-ADVUNR-3S3516PJSLC-HPV3Right HandAS-24S-ADVUNR-31.25"0.375"35 Degrees Diamond NegativeVNMG-322£643.20
CAS-24S-ADCLNL-4S8012PJSLC-HPCTW-4NLeft HandAS-24S-ADCLNL-40.89"0.5"80 Degrees Diamond NegativeCNMG-432£581.94
AAS-24S-ADCLNR-4S8012PJSLC-HPCTW-4NRight HandAS-24S-ADCLNR-40.89"0.5"80 Degrees Diamond NegativeCNMG-432£581.94
DORIAN -

Boring Bar As-32t

DORIAN AS-32T-ADCLNR-4A
StyleModelStyleClampCutting DirectionInsert ShapeInsert SizeLead AngleMin. BoreShimPrice (inc. VAT)
AAS-32T-ADCLNR-4AS-32T-ADCLNR-4JSLC-HPCTW-4NRight Hand80 Degrees Diamond NegativeCNMG-43211 Degrees2.562"S8012P£735.07
AAS-32T-ADWLNL-4AS-32T-ADWLNL-4JSLC-HPW3-LLeft Hand80 Degrees Trigon NegativeWNMG-43212 Degrees2"IWSN-423£735.07
AAS-32T-ADWLNR-4AS-32T-ADWLNR-4JSLC-HPW3-RRight Hand80 Degrees Trigon NegativeWNMG-43212 Degrees2"IWSN-423£735.07
DORIAN -

Boring Bar Right-hand

DORIAN E10M-STUPR-2A
DORIAN TPBN10-2B
StyleModelLead AngleClampClamp ScrewMaterialMax. DepthMin. BoreMounting StyleOverall LengthPrice (inc. VAT)
AE10M-STUPR-20--Carbide3.75"0.75"Screw Lock6"£443.06
AE10S-STUPR-20--Carbide3.75"0.75"Screw Lock10"£637.19
BTPBN10-20 Degrees--Steel2.5"0.682"Screw Lock8"£113.15
BTPBN16-30 Degrees--Steel4"1.115"Screw Lock12"£193.56
AS10S-CTFPR-20 DegreesHC-7SHC-7Steel2.5"0.77"Clamp-Lock10"£271.36
BTPBN06-20 Degrees--Steel2"0.43"Screw Lock5"£108.28
BTPBN08-20 Degrees--Steel2"0.59"Screw Lock6"£105.12
BTPBN12-30 Degrees--Steel3"0.845"Screw Lock10"£113.22
AE08K-STUPR-22--Carbide3"0.587"Screw Lock5"£350.98
AE10S-SCLPR-22--Carbide3.75"0.74"Screw Lock10"£646.01
AE10M-SCLPR-22--Carbide3.75"0.74"Screw Lock6"£443.06
AE08R-STUPR-22--Carbide3"0.587"Screw Lock8"£462.22
AS10S-SCLPR-32 Degrees--Steel2.5"0.77"Screw Lock10"£189.44
AE08R-SCLPR-23--Carbide3"0.55"Screw Lock8"£462.22
AE08K-SCLPR-23--Carbide3"0.55"Screw Lock5"£361.80
AE06M-STUPR-24--Carbide2.25"0.456"Screw Lock6"£339.55
AE10S-SCLPR-35--Carbide3.75"0.74"Screw Lock10"£637.19
AE10M-SCLPR-35--Carbide3.75"0.74"Screw Lock6"£451.61
AE10M-SDXCR-25--Carbide3.75"0.844"Screw Lock5.66"£443.06
AE10S-SDXCR-25--Carbide3.75"0.844"Screw Lock9.66"£637.19
AS10S-SVMCR-25 Degrees--Steel2.5"0.98"Screw Lock10"£257.83
AE10M-SVUPR-26--Carbide3.75"0.844"Screw Lock10"£441.64
AE06M-SCLPR-26--Carbide2.25"0.396"Screw Lock6"£353.58
AE08K-SDXCR-26--Carbide3"0.712"Screw Lock4.66"£350.98
AE08R-SDXCR-26--Carbide3"0.712"Screw Lock7.66"£462.22
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DORIAN -

Boring Bar Right-hand 1.37 Inch

High-quality Dorian boring bars are designed to enlarge or finish inside diameters of wood, metal and plastic workpieces on lathes and other CNC machines. These bars come in standard steel construction and feature a right-hand cutting direction which offers the direction of rotation, i.e. either clockwise or counterclockwise. Choose from a wide range of Doring boring bars available in TPBN20-4 & TPBN20-3 styles and screw lock mounting on Raptor Supplies.

DORIAN TPBN20-4A
StyleModelInscribed CircleInsert ScrewInsert SizeInsert ThicknessStylePrice (inc. VAT)
ATPBN20-40.5"TS-83-4M1TPGH-4320.187"TPBN20-4£219.92
ATPBN20-30.375"TS-44-3M1TPGH-3220.156"TPBN20-3£233.33
DORIAN -

Boring Bar S067

DORIAN S06H-SCLCL-2A
StyleModelCutting DirectionInsert ShapeInsert SizeMin. BoreStyleWidth OffsetPrice (inc. VAT)
AS06H-SCLCL-2Left Hand80 Degrees Diamond PositiveCCMT-21.510.394"S06H-SCLCL-20.236"£101.95
AS06H-SCLCR-2Right Hand80 Degrees Diamond PositiveCCMT-21.510.394"S06H-SCLCR-20.236"£108.19
AS06H-SWUCR-2Right Hand80 Degrees Trigon PositiveWCMT-21.510.394"S06H-SWUCR-20.236"£101.95
AS06H-SDUCR-2Right Hand55 Degrees Diamond PositiveDCMT-21.510.492"S06H-SDUCR-20.197"£116.11

Features

  • Raptor Supplies offers a variety of left-hand and right-hand Dorian boring bars for various internal machining applications and for enlarging existing holes.
  • Boring bars are typically longer than drill bits, resulting in a larger surface area for vibrations to occur.
  • Due to their dense structures, these units provide a more stable cut when an axial force is applied.
  • Selected units have a shallow thread that does not run the length of the unit. When compared to a drill bit, this thread pattern can generate more vibrations through the boring bar, resulting in a tighter seal in the interior of the material being bored.

Working Mechanism

  • Boring bars have the main body that is attached to and rotated by the milling sleeve of the machine tool.
  • A precision mechanism within the main body moves back and forth, actuated by the linear movement of the machine tool boring spindle.
  • Due to the rigidity of the boring bar and the precision of its internal mechanism, the tool accurately reflects the contouring capabilities of the machine tool to which it is attached.

Frequently Asked Questions

What are the requirements for installing the boring bar on a machine?

  • The lateral movement of the boring bar should be under CNC control.
  • The machine tool's table or column should move in the same direction as the boring bar.
  • The boring spindle and milling sleeve should rotate in unison.

How do you stop boring bars from chattering?

  • Slow down the cutting speed.
  • Increase the depth of the cut (Rule of thumb is at least your tool nose radius).
  • If possible, increase the feeding rate.
  • Select a tool with a smaller nose radius.
  • Reduce the stick out of the bars.

How do I stop my boring from vibrating?

A variable stiffness dynamic vibration absorber (DVA) is added inside the boring bar to reduce vibration and thus improve the performance of boring operations. The DVA's stiffness is provided by two rubber bushes located within the DV

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