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China Face Mill Holder Suppliers - HSK-A-FMB, BT-FMA, BT-FMB & BT-FMB-BG Factory Direct Options
HSK-A-FMB Face Mill Holder

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| Specification | Figure | D | D1 | D2 | D3 | L | L1 | Locking screw for cutter | Washer | Water hole | Weight |
| HSK50A-FMB22C-60 | A | 48 | 22 | 16 | - | 60 | 18 | E100U300 | - | √ | 0.90 |
| HSK63A-FMB16C-100 | A | 35 | 16 | 13 | - | 100 | 16 | E080U300 | - | √ | 1.80 |
| HSK63A-FMB22C-50 | A | 48 | 22 | 16 | - | 50 | 18 | E100U300 | - | √ | 1.00 |
| HSK63A-FMB22C-100 | A | 48 | 22 | 16 | - | 100 | 18 | E100U300 | - | √ | 1.70 |
| HSK63A-FMB27C-60 | A | 60 | 27 | 33 | - | 60 | 20 | E120U300 | FM-1 | √ | 1.50 |
| HSK63A-FMB27C-100 | A | 60 | 27 | 33 | - | 100 | 20 | E120U300 | FM-1 | √ | 2.30 |
| HSK63A-FMB32C-60 | A | 78 | 32 | 40 | - | 60 | 22 | E160U350 | FM-2 | √ | 1.90 |
| HSK63A-FMB40C-60 | A | 85 | 40 | 50 | - | 60 | 25 | E200Z350-50 | - | √ | 2.20 |
| HSK100A-FMB22C-50 | A | 48 | 22 | 16 | - | 50 | 18 | E100U300 | - | √ | 2.30 |
| HSK100A-FMB22C-100 | A | 48 | 22 | 16 | - | 100 | 18 | E100U300 | - | √ | 3.00 |
| HSK100A-FMB27C-50 | A | 60 | 27 | 33 | - | 50 | 20 | E120U300 | FM-1 | √ | 2.70 |
| HSK100A-FMB27C-100 | A | 60 | 27 | 33 | - | 100 | 20 | E120U300 | FM-1 | √ | 3.60 |
| HSK100A-FMB32C-50 | A | 78 | 32 | 40 | - | 50 | 22 | E160U350 | FM-2 | √ | 3.00 |
| HSK100A-FMB32C-100 | A | 78 | 32 | 40 | - | 100 | 22 | E160U350 | FM-2 | √ | 4.90 |
| HSK100A-FMB40C-60 | A | 85 | 40 | 50 | - | 60 | 25 | E200Z350-50 | - | √ | 3.80 |
| HSK100A-FMB40F-75 | B | 89 | 40 | - | 66.7 | 75 | 25 | E120U450 | - | - | 4.60 |
| HSK100A-FMB60F-70 | B | 129 | 60 | - | 101.6 | 70 | 32 | E160U500 | - | - | 6.30 |
BT-FMA Face Mill Holder

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| Specification | Figure | D | D1 | D2 | L | L1 | Locking screw for cutter | Washer | Weight |
| BT30-FMA25.4-45 | A | 50 | 25.40 | 18 | 45 | 20 | E120U300 | - | 0.80 |
| BT30-FMA25.4-60 | A | 50 | 25.40 | 18 | 60 | 20 | E120U300 | - | 1.04 |
| BT30-FMA31.75-45 | A | 60 | 31.75 | 40 | 45 | 22 | E160U350 | - | 1.00 |
| BT40-FMA25.4-45 | A | 50 | 25.40 | 18 | 45 | 20 | E120U300 | - | 1.36 |
| BT40-FMA25.4-60 | A | 50 | 25.40 | 18 | 60 | 20 | E120U300 | - | 1.59 |
| BT40-FMA25.4-90 | A | 50 | 25.40 | 18 | 90 | 20 | E120U300 | - | 2.05 |
| BT40-FMA25.4-105 | A | 50 | 25.40 | 18 | 105 | 20 | E120U300 | - | 2.28 |
| BT40-FMA31.75-45 | A | 60 | 31.75 | 40 | 45 | 22 | E160U350 | FM-2 | 1.65 |
| BT40-FMA31.75-75 | A | 60 | 31.75 | 40 | 75 | 22 | E160U350 | FM-2 | 2.33 |
| BT40-FMA31.75-90 | A | 60 | 31.75 | 40 | 90 | 22 | E160U350 | FM-2 | 2.66 |
| BT40-FMA38.10-60 | A | 75 | 38.10 | 50 | 60 | 25 | E160U350 | FM-3 | 2.49 |
| BT50-FMA25.4-45 | A | 50 | 25.40 | 18 | 45 | 20 | E120U300 | - | 3.85 |
| BT50-FMA25.4-90 | A | 50 | 25.40 | 18 | 90 | 20 | E120U300 | - | 4.56 |
| BT50-FMA25.4-150 | A | 50 | 25.40 | 18 | 150 | 20 | E120U300 | - | 5.48 |
| BT50-FMA31.75-45 | A | 60 | 31.75 | 40 | 45 | 22 | E160Z350-40 | - | 4.07 |
| BT50-FMA31.75-75 | A | 60 | 31.75 | 40 | 75 | 22 | E160Z350-40 | - | 4.72 |
| BT50-FMA31.75-105 | A | 98 | 31.75 | 40 | 105 | 22 | E160Z350-40 | - | 5.34 |
| BT50-FMA38.10-45 | A | 80 | 38.10 | 50 | 45 | 25 | E160Z350-50 | - | 4.35 |
| BT50-FMA38.10-75 | A | 80 | 38.10 | 50 | 75 | 25 | E160Z350-50 | - | 5.29 |
| BT50-FMA50.80-45 | A | 95 | 50.80 | 65 | 45 | 27.5 | E240Z350-65 | - | 4.80 |
| BT50-FMA50.80-75 | A | 95 | 50.80 | 65 | 75 | 27.5 | E240Z350-65 | - | 6.46 |
| BT50-FMA47.625F-75 | B | 129 | 47.625 | - | 75 | 32 | E160U500 | - | 8.06 |
BT-FMB Face Mill Holder

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| Specification | Figure | D | D1 | D2 | D3 | L | L1 | Locking screw for cutter | Washer | Water hole | Weight |
| BT30-FMB22C-45 | A | 48 | 22 | 16 | - | 45 | 18 | E100U300 | - | √ | 0.74 |
| BT30-FMB27C-45 | A | 60 | 27 | 33 | - | 45 | 20 | E120U300 | FM-1 | √ | 0.90 |
| BT30-FMB32C-50 | A | 78 | 32 | 40 | - | 50 | 22 | E160U350 | FM-2 | √ | 1.60 |
| BT40-FMB22C-60 | A | 48 | 22 | 16 | - | 60 | 18 | E100U300 | - | √ | 1.31 |
| BT40-FMB22C-100 | A | 48 | 22 | 16 | - | 100 | 18 | E100U300 | - | √ | 2.05 |
| BT40-FMB22-150 | A | 48 | 22 | 16 | - | 150 | 18 | E100U300 | - | - | 2.70 |
| BT40-FMB22-200 | A | 48 | 22 | 16 | - | 200 | 18 | E100U300 | - | - | 3.43 |
| BT40-FMB27C-60 | A | 60 | 27 | 33 | - | 60 | 20 | E120U300 | FM-1 | √ | 1.50 |
| BT40-FMB27C-100 | A | 60 | 27 | 33 | - | 100 | 20 | E120U300 | FM-1 | √ | 2.70 |
| BT40-FMB32C-50 | A | 78 | 32 | 40 | - | 50 | 22 | E160U350 | FM-2 | √ | 2.00 |
| BT40-FMB32C-100 | A | 78 | 32 | 40 | - | 100 | 22 | E160U350 | FM-2 | √ | 3.80 |
| BT40-FMB40C-60 | A | 85 | 40 | 50 | - | 60 | 25 | E200Z350-50 | - | √ | 2.50 |
| BT50-FMB22C-45 | A | 48 | 22 | 16 | - | 45 | 18 | E100U300 | - | √ | 3.80 |
| BT50-FMB22C-100 | A | 48 | 22 | 16 | - | 100 | 18 | E100U300 | - | √ | 4.60 |
| BT50-FMB22-150 | A | 48 | 22 | 16 | - | 150 | 18 | E100U300 | - | - | 5.27 |
| BT50-FMB22-200 | A | 48 | 22 | 16 | - | 200 | 18 | E100U300 | - | - | 5.97 |
| BT50-FMB27C-50 | A | 60 | 27 | 33 | - | 50 | 20 | E120U300 | FM-1 | √ | 4.10 |
| BT50-FMB27C-100 | A | 60 | 27 | 33 | - | 100 | 20 | E120U300 | FM-1 | √ | 5.10 |
| BT50-FMB27-150 | A | 60 | 27 | 33 | - | 150 | 20 | E120U300 | FM-1 | - | 6.25 |
| BT50-FMB27-200 | A | 60 | 27 | 33 | - | 200 | 20 | E120U300 | FM-1 | - | 7.37 |
| BT50-FMB27-250 | A | 60 | 27 | 33 | - | 250 | 20 | E120U300 | FM-1 | - | 8.51 |
| BT50-FMB32C-50 | A | 78 | 32 | 40 | - | 50 | 22 | E160U350 | FM-2 | √ | 4.40 |
| BT50-FMB32C-100 | A | 78 | 32 | 40 | - | 100 | 22 | E160U350 | FM-2 | √ | 5.79 |
| BT50-FMB32-150 | A | 78 | 32 | 40 | - | 150 | 22 | E160Z350-40 | - | - | 7.10 |
| BT50-FMB40C-50 | A | 85 | 40 | 50 | - | 50 | 25 | E200Z350-50 | - | √ | 4.57 |
| BT50-FMB40C-100 | A | 85 | 40 | 50 | - | 100 | 25 | E200Z350-50 | - | √ | 6.45 |
| BT50-FMB40F-75 | B | 89 | 40 | - | 66.7 | 75 | 25 | E120U450 | - | - | 5.80 |
| BT50-FMB60F-75 | B | 129 | 60 | - | 101.6 | 75 | 32 | E160U500 | - | - | 8.30 |
BT-FMB-BG Face Mill Holder With Extra Taper Shank

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| Specification | D | D1 | D2 | D3 | L | L1 | L2 | Locking screw for cutter | Weight |
| BT40-FMB22-150BG | 48 | 22 | 16.00 | 50 | 150 | 18 | 40 | E100U300 | 2.83 |
| BT40-FMB22-200BG | 48 | 22 | 16.00 | 50 | 200 | 18 | 40 | E100U300 | 3.57 |
| BT40-FMB22-250BG | 48 | 22 | 16.00 | 50 | 250 | 18 | 40 | E100U300 | 4.29 |
| BT40-FMB22-300BG | 48 | 22 | 16.00 | 50 | 300 | 18 | 40 | E100U300 | 5.04 |
| BT50-FMB22-150BG | 58 | 22 | 16.00 | 62.5 | 150 | 18 | 40 | E100U300 | 6.17 |
| BT50-FMB22-200BG | 58 | 22 | 16.00 | 62.5 | 200 | 18 | 40 | E100U300 | 7.28 |
| BT50-FMB22-250BG | 58 | 22 | 16.00 | 62.5 | 250 | 18 | 40 | E100U300 | 8.41 |
| BT50-FMB22-300BG | 58 | 22 | 16.00 | 62.5 | 300 | 18 | 40 | E100U300 | 9.55 |
SK-FMB Face Milling Holder

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| Specification | Figure | D | D1 | D2 | D3 | L | L1 | Locking screw for cutter | Washer | Water hole | Weight |
| SK30-FMB22C-45 | A | 48 | 22 | 16 | - | 45 | 18 | E100U300 | - | √ | 0.70 |
| SK30-FMB27C-50 | A | 60 | 27 | 33 | - | 50 | 20 | E120U300 | FM-1 | √ | 1.00 |
| SK40-FMB22C-40 | A | 48 | 22 | 16 | - | 40 | 18 | E100U300 | - | √ | 1.20 |
| SK40-FMB22C-100 | A | 48 | 22 | 16 | - | 100 | 18 | E100U300 | - | √ | 2.00 |
| SK40-FMB27C-60 | A | 60 | 27 | 33 | - | 60 | 20 | E120U300 | FM-1 | √ | 1.70 |
| SK40-FMB27C-100 | A | 60 | 27 | 33 | - | 100 | 20 | E120U300 | FM-1 | √ | 2.60 |
| SK40-FMB32C-60 | A | 78 | 32 | 40 | - | 60 | 22 | E160U350 | FM-2 | √ | 2.30 |
| SK40-FMB32C-100 | A | 78 | 32 | 40 | - | 100 | 22 | E160U350 | FM-2 | √ | 3.70 |
| SK40-FMB40C-60 | A | 85 | 40 | 50 | - | 60 | 25 | E200Z350-50 | - | √ | 2.50 |
| SK50-FMB22C-35 | A | 48 | 22 | 16 | - | 35 | 18 | E100U300 | - | √ | 2.90 |
| SK50-FMB22C-100 | A | 48 | 22 | 16 | - | 100 | 18 | E100U300 | - | √ | 3.80 |
| SK50-FMB27C-35 | A | 60 | 27 | 33 | - | 35 | 20 | E120U300 | FM-1 | √ | 3.20 |
| SK50-FMB27C-100 | A | 60 | 27 | 33 | - | 100 | 20 | E120U300 | FM-1 | √ | 4.50 |
| SK50-FMB32C-40 | A | 78 | 32 | 40 | - | 40 | 22 | E160U350 | FM-2 | √ | 3.60 |
| SK50-FMB32C-100 | A | 78 | 32 | 40 | - | 100 | 22 | E160U350 | FM-2 | √ | 5.80 |
| SK50-FMB40C-50 | A | 85 | 40 | 50 | - | 50 | 25 | E200Z350-50 | - | √ | 4.20 |
| SK50-FMB40F-75 | B | 89 | 40 | - | 66.7 | 75 | 25 | E120U450 | - | √ | 4.60 |
| SK50-FMB60F-70 | B | 129 | 60 | - | 101.6 | 70 | 32 | E160U500 | - | √ | 7.90 |
Frequently Asked Questions
Q
What is the difference between HSK-A-FMB and BT-FMB face mill holders?
HSK-A-FMB face mill holders use the HSK (Hollow Shank Taper) interface, which provides superior rigidity, higher clamping force, and better runout accuracy — ideal for high-speed machining centers. BT-FMB holders use the BT (Big-Plus Taper) interface, which is widely compatible with standard BT30/BT40/BT50 spindles and is the most commonly used toolholder system in conventional CNC machining.
Q
What does "FMA" vs "FMB" mean in the face mill holder specification?
FMA indicates the face mill holder uses an inch-based pilot bore (e.g., 25.4mm = 1 inch, 31.75mm = 1.25 inch), commonly used with American-standard face mill cutters. FMB indicates the holder uses a metric pilot bore (e.g., 22mm, 27mm, 32mm, 40mm), which is compatible with metric-standard face mill cutters following the FMB interface standard.
Q
What is the BT-FMB-BG face mill holder with extra taper shank used for?
The BT-FMB-BG series features an extended body with an additional taper shank (BG), which provides extra rigidity and vibration damping for deep-reach or long-overhang face milling applications. This design is particularly useful when machining deep cavities or when the spindle nose needs to be kept at a distance from the workpiece, helping to maintain stable cutting performance.
Q
What does the "Water hole" column (√ or -) indicate in the specification table?
The "Water hole" column indicates whether the face mill holder supports through-coolant (internal coolant supply). A "√" means the holder has an internal coolant channel, allowing coolant to be delivered directly to the cutting zone through the holder for improved chip evacuation, better surface finish, and extended tool life. A "-" means no through-coolant feature is available on that model.
Q
How do I select the correct face mill holder for my application?
To select the correct face mill holder, consider the following: (1) Spindle interface type — HSK-A, BT30/40/50, or SK30/40/50; (2) Pilot bore size (D1) — must match your face mill cutter's arbor bore; (3) Overall length (L) — choose based on your workpiece depth and clearance requirements; (4) Whether through-coolant is needed for your machining conditions; (5) Weight — heavier holders may affect spindle balance at high RPM. Always verify the locking screw specification matches your cutter.
Q
What is the SK-FMB face milling holder and how does it differ from BT-FMB?
The SK-FMB face milling holder uses the SK (Steil-Kegel / steep taper) spindle interface, which is the DIN standard equivalent of the BT taper system. While BT holders include a retention knob hole for automatic tool changers commonly used in Japanese-standard machines, SK holders are designed for European-standard CNC machining centers. Both systems share similar FMB pilot bore dimensions, but are not interchangeable due to different taper geometries and pull-stud configurations.










