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China Face Mill Holders - HSK-A-FMB, BT-FMA, BT-FMB & BT-FMB-BG by Leading Suppliers and Factory
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 holders use the HSK (Hollow Shank Taper) interface, which provides superior rigidity and repeatability at high spindle speeds due to simultaneous taper and face contact. BT-FMB holders use the BT (BIG-PLUS or standard) taper shank interface, which is widely compatible with conventional machining centers. The choice depends on your machine spindle type and the required precision level.
Q
What is the difference between FMA and FMB face mill holder interfaces?
FMB (Face Mill Bore) holders feature a standard metric bore with a coolant-through water hole option, commonly used with metric face milling cutters. FMA holders are designed for inch-bore face milling cutters (e.g., 25.4mm, 31.75mm, 38.10mm bore sizes), making them suitable for cutters following ANSI/inch standards. Always match the holder bore to your cutter's shank specification.
Q
What does the "BG" suffix mean in BT-FMB-BG face mill holders?
The "BG" suffix indicates that the holder features an extra taper shank (reinforced body) design. This extended body provides additional stability and vibration damping for deep-reach machining applications where a longer gauge length is required. BG holders are typically used when the cutter needs to reach deep cavities or when extra rigidity is needed at extended lengths.
Q
How do I select the correct face mill holder specification for my application?
To select the correct face mill holder, consider: (1) Spindle type — match the holder shank (HSK50A, HSK63A, HSK100A, BT30, BT40, BT50, SK30, SK40, SK50) to your machine spindle; (2) Cutter bore diameter (D1) — match to your face mill cutter's pilot bore; (3) Gauge length (L) — select based on your workpiece setup clearance; (4) Water hole requirement — choose holders with √ in the Water hole column if coolant-through is needed; (5) Locking screw and washer — ensure compatible accessories are available.
Q
Do these face mill holders support through-coolant (water hole) delivery?
Many models in the HSK-A-FMB, BT-FMB, and SK-FMB series support through-coolant delivery, indicated by the "√" symbol in the Water hole column of the specification table. Models marked with "-" do not include a water hole. Through-coolant capability is especially beneficial for high-speed face milling operations, improving chip evacuation, extending tool life, and maintaining dimensional accuracy.
Q
What is the SK-FMB face milling holder and when should it be used?
SK-FMB face milling holders use the SK (Steilkegel) taper shank interface, which is a steep taper standard common in European machining centers. SK30, SK40, and SK50 designations refer to the taper size. These holders are ideal for use on machines equipped with SK-type spindles and offer a wide range of bore sizes (D1: 22mm to 60mm) and gauge lengths to accommodate various face milling cutter sizes and machining depths.










