Name: T51 drop center retract button bit for bench drilling tools
Brand: beentools

Description

T51 Threaded Drill Bit Overview

The T51 threaded drill bit features high drilling speed, which accelerates project completion, and offers an affordable price, providing excellent economic value.
This webpage mainly introduces the T51 threaded button bit, T51 retract button bit, T51 drop center retract button bit, and coupling sleeve.

Technical Information

Technical Information of T51 Threaded Button Bit

Connection Thread: T51
Head Material: Tungsten carbide
Bit Body Material: High-strength alloy steel
Flushing Grooves: Distributed along the bit for chip removal and cooling
Head Design: Button shape
Diameter: 89 mm, 102 mm, 115 mm, and 127 mm
Gauge Button Angle: 35 degree and 40 degree
Gauge Buttons: 9×12 mm, 9×12 mm, etc.
Center Buttons: 6×10 mm, 6×12 mm, 7×13 mm, etc.
Weight: 4.0 kg and 9.5 kg
Head Manufacturing Process: Hot-pressing inlay technology
Other Manufacturing Processes: Full carburizing heat treatment, high-frequency treatment, and phosphating treatment

Technical Parameters of Coupling Sleeve

Types: Middle stop and reduction
Thread Connection Types: T51 and T45
Length: 235 mm
Diameter: 72 mm and 77 mm
Material: Forged high-strength alloy steel
Manufacturing Process: Full carburizing heat treatment
Weight: 4.0 kg, 4.2 kg, and 4.3 kg

Button Bit

T51 drop center retract button bit for bench drilling tools
Thread bit, Button	D (mm)	D (inch)	Buttons Gauge	Buttons Centre	Gauge button angle	Thread	Order number	Weight (kg)
Button	89	3 1/2	9 x 11 mm	6 x 10 mm	35 degree	T51	B173-8915-7805	4.0
	102	4	9 x 12 mm	6 x 12 mm	35 degree	T51	B173-0215-7805	4.8
	115	4 1/2	9 x 13 mm	6 x 12 mm	35 degree	T51	B173-1515-7805	7.0
	127	5	9 x 14 mm	6 x 13 mm	35 degree	T51	B173-2715-7805	8.0
	89	3 1/2	9 x 11 mm	6 x 10 mm	40 degree	T51	B173-8915-7864	4.8
Button	89	3 1/2	8 x 12 mm	6 x 11 mm	35 degree	T51	B173-8914-7805	4.0
	102	4	8 x 13 mm	7 x 12 mm	35 degree	T51	B173-0215-7805	6.6
	115	4 1/2	8 x 14 mm	7 x 13 mm	35 degree	T51	B173-1515-7805	7.0
	127	5	8 x 14 mm	7 x 14 mm	35 degree	T51	B173-2715-7805	9.4
	89	3 1/2	8 x 11 mm	7 x 11 mm	40 degree	T51	B173-8915-7864	4.0
	102	4	8 x 13 mm	7 x 12 mm	40 degree	T51	B173-0215-7864	6.6
Button, flat, retrac	89	3 1/2	9 x 11 mm	6 x 10 mm	35 degree	T51	B174-8915-7805	4.9
	102	4	9 x 12 mm	6 x 12 mm	35 degree	T51	B174-0215-7805	7.1
	115	4 1/2	9 x 13 mm	6 x 12 mm	35 degree	T51	B174-1515-7805	9.5
	89	3 1/2	9 x 11 mm	6 x 10 mm	40 degree	T51	B174-8915-7864	4.9
Button, drop center, retrac	89	3 1/2	8 x 12 mm	6 x 11 mm	35 degree	T51	B176-8914-7805	4.7
	102	4	8 x 13 mm	6 x 12 mm	35 degree	T51	B176-0214-7805	5.3
	115	4 1/2	8 x 14 mm	6 x 13 mm	35 degree	T51	B176-1514-7805	7.0
	127	5	8 x 14 mm	7 x 14 mm	35 degree	T51	B176-2715-7805	8.0
	89	3 1/2	8 x 12 mm	5 x 11 mm	40 degree	T51	B176-8913-7864	4.7
	102	4	8 x 13 mm	6 x 12 mm	40 degree	T51	B176-0214-7864	5.3
	115	4 1/2	8 x 14 mm	7 x 13 mm	40 degree	T51	B176-1515-7864	7.0