T-MAX 424.10 series THD BTA drill head (THD-18D95.00) — cartridges, inserts and pads

BTA DRILLING · T-⁠MAX 424.10 SERIES

THD drill headFrom Ø63.50 mm; larger sizes made to order.

The T-⁠MAX 424.10 series THD is a cartridge-type BTA head. Standard sizes cover Ø63.50–139.99 mm, Ø140.00–183.90 mm is made to order, and per the catalogue heads can be made up to Ø500 mm.

Find by diameter Catalogue PDF

RANGE: Ø63.50 – 183.90 mm
MAX: Made up to Ø500 mm
SYSTEM: STS · EJECTOR
TYPE: Cartridge type
INSERTS: TPMT (centre & intermediate) · LPMT (peripheral)

FEATURES

Straight, even when large and deep.Why the T-⁠MAX 424.10 series.

Features of the T-⁠MAX 424.10 series, as listed in the 2026 BTA Solution catalogue.

STRAIGHTNESS

Straightness and surface finish

Delivers excellent straightness and surface finish.

CARTRIDGE

Cartridge type

The cartridge design gives the head an edge.

CHIP FLOW

Smooth chip evacuation

Chips clear smoothly, even in deep holes.

EASY CHANGE

Simple insert change

Simple insert changes keep work moving quickly.

SPECIFICATIONS

SpecificationsFind a head by diameter.

The order code contains the diameter range. Values are taken from the original 2026 BTA Solution catalogue.

Enter a diameter and press Find. Matching sizes appear here, and their rows are highlighted in the table below.

T-⁠MAX 424.10 series THD (quantity = ×n)
Order code	Tube ODmm	dmm	Lmm	Centre cartridge	Intermediate cartridge	Peripheral cartridge	Support pad
THD-13D63.50~64.99	51.0	47.0	115	CTP16-K-L ×1	CTP16-K-R ×1	CLP13-K ×1	430.32-12D65.0 ×2
THD-13D63.50~64.99	51.0	47.0	115	CTP16-K-L ×1	CTP16-K-R ×1	CLP13-K ×1	LNXT35D065-SUP ×2
THD-13E63.50~65.00	57.0	51.0	115	CTP16-K-L ×1	CTP16-K-R ×1	CLP13-K ×1	430.32-12D65.0 ×2
THD-13E63.50~65.00	57.0	51.0	115	CTP16-K-L ×1	CTP16-K-R ×1	CLP13-K ×1	LNXT35D065-SUP ×2
THD-14D63.50~65.00	56.0	52.0	150	CTP16-K-L ×1	CTP16-K-R ×1	CLP13-K ×1	430.32-12D65.0 ×2
THD-14D63.50~65.00	56.0	52.0	150	CTP16-K-L ×1	CTP16-K-R ×1	CLP13-K ×1	LNXT35D065-SUP ×2
THD-15D65.01~74.99	62.0	58.0	150	CTP16-K-L ×1	CTP16-K-R ×1	CLP13-K ×1	430.32-12D65.0 ×2
							LNXT35D065-SUP ×2
							430.32-12D70.0 ×2
THD-16D75.00~79.99	68.0	63.0	160	CTP16-K-L ×1	CTP16-K-R ×1	CLP18-K ×1	430.32-12D75.0 ×2
THD-16D75.00~79.99	68.0	63.0	160	CTP16-K-L ×1	CTP16-K-R ×1	CLP18-K ×1	LNXT35D075-SUP ×2
THD-17D80.00~84.99	75.0	70.0	190	CTP16-K-L ×1	CTP16-K-R ×1	CLP18-K ×1	430.32-12D80.0 ×2
THD-17D80.00~84.99	75.0	70.0	190	CTP16-K-L ×1	CTP16-K-R ×1	CLP18-K ×1	LNXT35D085-SUP ×2
THD-17D85.00~88.89	75.0	70.0	190	CTP16-K-L ×1	CTP22-K-R ×1	CLP18-K ×1	LNXT35D085-SUP ×2
THD-17D85.00~88.89	75.0	70.0	190	CTP16-K-L ×1	CTP22-K-R ×1	CLP18-K ×1	430.32-12D85.0 ×2
THD-18D88.90~94.99	82.0	77.0	190	CTP16-K-L ×1	CTP22-K-R ×1	CLP18-K ×1	430.32-12D85.0 ×2
THD-18D88.90~94.99	82.0	77.0	190	CTP16-K-L ×1	CTP22-K-R ×1	CLP18-K ×1	LNXT35D085-SUP ×2
THD-18D95.00~99.99	82.0	77.0	190	CTP22-K-L ×1	CTP22-K-R ×1	CLP18-K ×1	430.32-12D90.0 ×2
THD-18D95.00~99.99	82.0	77.0	190	CTP22-K-L ×1	CTP22-K-R ×1	CLP18-K ×1	430.32-12D95.0 ×2
THD-19D100.00~107.94	94.0	89.0	195	CTP22-K-L ×1	CTP22-K-R ×1	CLP18-K ×1	430.32-16D100.0 ×2
							LNXT50D100-SUP ×2
							430.32-16D105.0 ×2
THD-19D107.95~114.29	94.0	89.0	195	CTP16-K-L ×1	CTP16-K-R ×3	CLP13-K ×1	LNXT50D110-SUP ×2
THD-19D107.95~114.29	94.0	89.0	195	CTP16-K-L ×1	CTP16-K-R ×3	CLP13-K ×1	430.32-16D110.0 ×2
THD-20D114.30~120.64	106.0	101.0	220	CTP16-K-L ×1	CTP16-K-R ×3	CLP13-K ×1	430.32-16D110.0 ×2
						CLP13-K ×1	LNXT50D110-SUP ×2
						CLP18-K ×1	430.32-16D115.0 ×2
THD-20D120.65~124.99	106.0	101.0	220	CTP16-K-L ×1	CTP16-K-R ×3	CLP18-K ×1	430.32-16D115.0 ×2
							430.32-16D120.0 ×2
							LNXT50D120-SUP ×2
THD-21D125.00~139.99	118.0	113.0	220	CTP16-K-L ×1	CTP16-K-R ×3	CLP18-K ×1	430.32-16D125.0 ×2
							LNXT50D120-SUP ×2
							430.32-16D130.0 ×2
							LNXT50D130-SUP ×2
THD-22D140.00~147.99	Made to order
THD-23D148.00~159.99 / THD-24D160.00~171.99	Made to order
THD-25D172.00~183.90	Made to order

Products or tube types not listed here can be made to order.

CARTRIDGES

Cartridge layout.Centre · intermediate · peripheral cartridges.

Inserts are screwed to the cartridges, and the cartridges to the head.

Centre cartridge
Cartridge	Insert	Fmm	Lmm	Insert screw	Cartridge screw	Insert screw driver	Cartridge screw driver
CTP16-K-L	TPMT16T312R-K22.K23	15.50	15.50	5513 020-24-M3	5513 020-26-M5	TORX PLUS-T9	TORX PLUS-T20
CTP22-K-L	TPMT220612R-K22.K23	20.80	20.80	5513 020-25-M4	5513 020-26-M5	TORX PLUS-T15	TORX PLUS-T20

Intermediate cartridge
Cartridge	Insert	Fmm	Lmm	Insert screw	Cartridge screw	Insert screw driver	Cartridge screw driver
CTP16-K-R	TPMT16T312R-K22.K23	15.50	15.50	5513 020-24-M3	5513 020-26-M5	TORX PLUS-T9	TORX PLUS-T20
CTP22-K-R	TPMT220612R-K22.K23	20.80	20.80	5513 020-25-M4	5513 020-26-M5	TORX PLUS-T15	TORX PLUS-T20

Peripheral cartridge
Cartridge	Insert	Fmm	Lmm	Insert screw	Cartridge screw	Pad screw	Insert screw driver
CLP13-K	LPMT13T308-K22.K23	15.60	45.80	5513 020-24-M3	430.21-825-M6	154.3-835-M3.0	TORX PLUS-T9
CLP18-K	LPMT180608-K22.K23	21.00	50.80	5513 020-25-M4	430.21-825-M6	154.3-835-M3.0	TORX PLUS-T15

Support pad screw
Diameter rangemm	Support pad screw	Driver
65.00-99.99	5513 020-01-M3.5	TORX PLUS-T15
100.00-183.90	5513 020-26-M5.0	TORX PLUS-T20

Cartridge shims
Cartridge	Thicknessmm	Part no.
CLP13-K	0.05 · 0.1 · 0.2 · 0.3 · 0.5 (4 pcs each)	424-130420
CLP18-K	0.05 · 0.1 · 0.2 · 0.3 · 0.5 (4 pcs each)	424-180420

Support pad shim
Support pad	Thicknessmm	Part no.
LNXT35DXXX-SUP	0.05 · 0.1 · 0.2 · 0.3 · 0.5 (4 pcs each)	0350420
LNXT50DXXX-SUP	0.05 · 0.1 · 0.2 · 0.3 · 0.5 (4 pcs each)	0500420

INSERTS & PADS

Inserts and pads.TPMT · LPMT inserts.

The centre and intermediate positions use TPMT inserts, the peripheral position LPMT. K22 and K23 are chip breaker geometries.

Centre · intermediate inserts (TPMT)
Insert	Imm	Wmm	Smm	Rmm
TPMT16T312R-K22	9.52	16.5	3.97	1.2
TPMT16T312R-K23	9.52	16.5	3.97	1.2
TPMT220612R-K22	12.7	22.0	6.35	1.2
TPMT220612R-K23	12.7	22.0	6.35	1.2

Peripheral inserts (LPMT)
Insert	Imm	Wmm	Smm	Rmm
LPMT 13T308-K22	10.0	14.3	3.96	0.8
LPMT 13T308-K23	10.0	14.3	3.96	0.8
LPMT 180608-K22	11.5	19.4	6.35	0.8
LPMT 180608-K23	11.5	19.4	6.35	0.8

Support pads (LNXT35 · 50)
Support pad	Imm	Wmm	Smm
LNXT35D065-SUP	35	14	7.0
LNXT35D075-SUP	35	14	7.0
LNXT35D085-SUP	35	14	7.0
LNXT50D100-SUP	50	20	8.5
LNXT50D110-SUP	50	20	8.5
LNXT50D120-SUP	50	20	8.5
LNXT50D130-SUP	50	20	8.5

Brazed support pads 430.32
Support pad	Uncoated	TiAlN coated	Imm	Wmm	Smm
430.32-10D35.0	★	★	35	12	7.0
430.32-10D40.0	★	★	35	12	7.0
430.32-10D45.0	★	★	35	12	7.0
430.32-10D50.0	★	★	35	12	7.0
430.32-10D55.0	★	★	35	12	7.0
430.32-10D60.0	★	★	35	12	7.0
430.32-12D65.0	★	★	35	14	7.0
430.32-12D70.0	★	★	35	14	7.0
430.32-12D75.0	★	★	35	14	7.0
430.32-12D80.0	★	★	35	14	7.0
430.32-12D85.0	★	★	35	14	7.0
430.32-12D90.0	★	★	35	14	7.0
430.32-12D95.0	★	★	35	14	7.0
430.32-16D100.0	★	★	50	20	8.5
430.32-16D105.0	★	★	50	20	8.5
430.32-16D110.0	★	★	50	20	8.5
430.32-16D115.0	★	★	50	20	8.5
430.32-16D120.0	★	★	50	20	8.5
430.32-16D125.0	★	★	50	20	8.5
430.32-16D130.0	★	★	50	20	8.5
430.32-16D140.0	★	★	50	20	8.5
430.32-16D150.0	★	★	50	20	8.5
430.32-16D160.0	★	★	50	20	8.5
430.32-16D170.0	★	★	50	20	8.5
430.32-16D180.0	★	★	50	20	8.5

Recommended insert grades
Material	1st-choice grade	2nd-choice grade
Steel (P)	HM3	SM3
Stainless steel (M)	SM3	IM3
Cast iron (K)	HM3	SM3
Non-ferrous metals (N)	SM3	IM3
Difficult-to-cut materials · heat-resistant alloys (S)	IM3	SM3

Recommended support pad grades
Material	1st-choice grade	2nd-choice grade
Steel (P)	PM3	IM3
Stainless steel (M)	IM3	PM3
Cast iron (K)	PM3	IM3
Non-ferrous metals (N)	IM3	PM3
Difficult-to-cut materials · heat-resistant alloys (S)	IM3	PM3

SYSTEM

For both tube systems.STS · EJECTOR

See how deep hole drilling works

STS · Single tube

SYSTEM: Single tube
COOLANT: Outside the tube → head
CHIPS: Out through the tube

Coolant is pushed in around the tube and carries the chips back out through it. Because the chips stay off the finished wall, the hole keeps its straightness and finish, even deep down.

EJECTOR · Double tube

SYSTEM: Double tube
COOLANT: Between outer and inner tubes
CHIPS: Drawn into the inner tube
MACHINE: Lathes · machining centres

Part of the coolant fed between the two tubes is jetted backwards, creating suction that draws the chips out. No sealed pressure head is needed, so deep holes can be drilled on conventional lathes and machining centres.

BTA DRILLING LINE-UP

For other diameters.BTA drilling line-up.

Below Ø25 mm choose the GHD; above Ø65 mm, the LHD or THD. The 500 series sets its diameter with cartridges.

All BTA drilling

Need a size that isn’t listed?Send us the drawing.

Tell us the workpiece material, hole diameter, depth and machine, and we will suggest the right tool.

+82-31-430-7094